thr3ads.net - Rails - Rake aborted! You have a nil object when you didn''t expect it! [Dec 2006]

If this information is useful, please help other people find it:
Share via:

Adam Teale

2006-Dec-17 16:57 UTC

Rake aborted! You have a nil object when you didn''t expect it!

Hi Guys,

I am following the Agile Web Development with Rails 2nd ed pdf - I have
just started Chapter 5 - the "depot" application.

I keep hitting a problem when I execute this command:
        rake db:migrate

I get:

---------------------------------------------------------------------------
== AddPrice: migrating
=======================================================-- add_column(:products,
:price, :decimal, {:default=>0, :precision=>8,
:scale=>2})
rake aborted!
You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.[]

(See full trace by running task with --trace)
---------------------------------------------------------------------------


Does anyone have any ideas?

Thanks!

Adam


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Aaron

2006-Dec-17 17:24 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

On Dec 17, 9:57 am, "Adam Teale"
<a...-mz/0qnkCjI3SUeElwK9/Pw@public.gmane.org>
wrote:> -- add_column(:products, :price, :decimal, {:default=>0,
:precision=>8,
> :scale=>2})
Adam,

The decimal data type is not supported in the current version of Rails
(1.1.6).  It should be in the 1.2 version.  You can install the 1.2
release candidate, details here:

http://weblog.rubyonrails.org/2006/11/23/rails-1-2-release-candidate-1

Or, you can do something like this in your migration with the current
version:

t.column :price, ''DECIMAL(5,2)''

This passes the column type right to the database and will work with
MySQL.

Aaron


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Craig White

2006-Dec-17 17:26 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

On Sun, 2006-12-17 at 08:57 -0800, Adam Teale wrote:> Hi Guys,
> 
> I am following the Agile Web Development with Rails 2nd ed pdf - I have
> just started Chapter 5 - the "depot" application.
> 
> I keep hitting a problem when I execute this command:
>         rake db:migrate
> 
> I get:
> 
> ---------------------------------------------------------------------------
> == AddPrice: migrating
> =======================================================> --
add_column(:products, :price, :decimal, {:default=>0, :precision=>8,
> :scale=>2})
> rake aborted!
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occured while evaluating nil.[]
> 
> (See full trace by running task with --trace)
> ---------------------------------------------------------------------------
> 
> 
> Does anyone have any ideas?----
you need to be running edge rails - I thought there was some discussion
about this in the PDF.

Craig


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Dave Thomas

2006-Dec-17 17:31 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

On Dec 17, 2006, at 5:26 PM, Craig White wrote:
>>
>> I am following the Agile Web Development with Rails 2nd ed pdf - I  
>> have
>> just started Chapter 5 - the "depot" application.
>>
>> I keep hitting a problem when I execute this command:
>>         rake db:migrate
Look at the second page of the PDF (just after the cover page). It  
tells you how to install a version of Rails that works with the code  
in the book. Rails 1.2 was supposed to be out at the time the book  
was printed, but things got delayed a bit...


Dave

--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Adam Teale

2006-Dec-18 01:22 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

Hey guys!

Thanks for sorting this out - I did read the section about v1.2 - but i
must have forgot to actually install it after I followed the OSX
install guide here:
http://blog.duncandavidson.com/2006/04/sandboxing_rail.html

Thankyou all very much!

This programming stuff is quite addictive!

Cheers

Adam


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Adam Teale

2006-Dec-18 01:32 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

hey guys i seems to be getting an error with Rake

rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
Rakefile.rb)
/opt/local/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1822:in
`load_rakefile''
(See full trace by running task with --trace)

any ideas?


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Craig White

2006-Dec-18 02:27 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

On Sun, 2006-12-17 at 17:32 -0800, Adam Teale wrote:> hey guys i seems to be getting an error with Rake
> 
> rake aborted!
> No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
> Rakefile.rb)
> /opt/local/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1822:in
> `load_rakefile''
> (See full trace by running task with --trace)----
change directories to rails_root directory first before running rake

Craig


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Adam Teale

2006-Dec-18 02:36 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

hi Craig

in a shell i did a "which rails"
it returned:
/opt/local/bin/rails

i changed into that drectory and ran the
rake rails:update

but i still get the:
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
Rakefile.rb)
/opt/local/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1822:in
`load_rakefile''
(See full trace by running task with --trace)


any ideas??


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Craig White

2006-Dec-18 02:44 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expect it!

On Sun, 2006-12-17 at 18:36 -0800, Adam Teale wrote:> hi Craig
> 
> in a shell i did a "which rails"
> it returned:
> /opt/local/bin/rails
> 
> i changed into that drectory and ran the
> rake rails:update
> 
> but i still get the:
> rake aborted!
> No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
> Rakefile.rb)----
you are working on an application - any application that you create with
a command
rails APPLICATION_NAME

IS the rails_root and has a Rakefile in it.

Craig


--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Adam Teale

2006-Dec-18 02:55 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

doh!

thanks Craig! I get it now

the rake rails:update command seems to have ran without any errors

thankyou for all your help!

Adam

-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
 You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-12 18:54 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

Dave Thomas wrote:> 
> Look at the second page of the PDF (just after the cover page). It
> tells you how to install a version of Rails that works with the code
> in the book. Rails 1.2 was supposed to be out at the time the book
> was printed, but things got delayed a bit...
I''m working from the paper copy of the book and don''t have the
benefit
of these instructions from the PDF.  Could someone post them here?

I''m using locomotive2, which installed rails 1.1.6.  I tried using gem 
to update my rails install to 1.2, but I''m still getting the same error
from rake.  I assume there''s some other step I''ve missed...


-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rob Biedenharn

2009-Jan-12 19:19 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

On Jan 12, 2009, at 1:54 PM, Matthew Pounsett wrote:> Dave Thomas wrote:
>>
>> Look at the second page of the PDF (just after the cover page). It
>> tells you how to install a version of Rails that works with the code
>> in the book. Rails 1.2 was supposed to be out at the time the book
>> was printed, but things got delayed a bit...
>
> I''m working from the paper copy of the book and don''t
have the benefit
> of these instructions from the PDF.  Could someone post them here?
>
> I''m using locomotive2, which installed rails 1.1.6.  I tried using
gem
> to update my rails install to 1.2, but I''m still getting the same
> error
> from rake.  I assume there''s some other step I''ve
missed...
>
> -- 

The paper book had the same instructions right there on the first page  
(the first paper inside the covers).

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org



--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-12 19:43 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

> The paper book had the same instructions right there on the first page
> (the first paper inside the covers).
> 
There are a couple paragraphs there about which versions of rails were 
available and supported by the book, but no instructions for making sure 
your rails install is running the correct version.

So, given that I''m running rails 1.2 now:

% rails --version
Rails 1.2.0

What''s the likely cause of having the same "nil object" error
as the
original poster?


-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rob Biedenharn

2009-Jan-12 19:56 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

On Jan 12, 2009, at 2:43 PM, Matthew Pounsett wrote:>> The paper book had the same instructions right there on the first  
>> page
>> (the first paper inside the covers).
>>
>
> There are a couple paragraphs there about which versions of rails were
> available and supported by the book, but no instructions for making  
> sure
> your rails install is running the correct version.
>
> So, given that I''m running rails 1.2 now:
>
> % rails --version
> Rails 1.2.0
>
> What''s the likely cause of having the same "nil object"
error as the
> original poster?

Did you actually run:  rake --trace db:migrate
so you can see where the problem happens?

That''s the first thing to do.  Since the OP''s error happened
over 2
years ago (!), you might as well consider your error "new" and post  
the details.  Anyone who generally follows via the mailing list isn''t  
even going to know what the OP context is (unless they go looking like  
I had to.)

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org



--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-12 20:07 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

Rob Biedenharn wrote:> 
> Did you actually run:  rake --trace db:migrate
> so you can see where the problem happens?
I did, but the trace information is meaningless to me.  I''ll paste it
in
below.
> That''s the first thing to do.  Since the OP''s error
happened over 2
> years ago (!), you might as well consider your error "new" and
post
> the details.  Anyone who generally follows via the mailing list
isn''t
> even going to know what the OP context is (unless they go looking like
> I had to.)
Good point.  I''m accessing this through a web forum (found the original
post through google) and didn''t realize there was as associated mailing
list (though now I see that it says so at the bottom of the page).

As noted, I''m working from the paper version of the AWDwR book. 
I''m
using Locomotive2 (2.0.8) as my Ruby/Rails install on MacOS.

In section 6.2 of the book where the second migration is created, I ran 
into the following error:

% rake db:migrate
(in /Users/mattp/devel/ruby/depot)
== AddPrice: migrating 
=======================================================-- add_column(:products,
:price, :decimal, {:scale=>2, :default=>0,
:precision=>8})
rake aborted!
You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.[]

(See full trace by running task with --trace)

After finding this thread with the note about rake 1.1.6 vs 1.2 
compatibility of the book''s instructions, I upgraded rake:

% which gem
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/bin//gem

% sudo gem install rails --version 1.2
Bulk updating Gem source index for: http://gems.rubyforge.org
Install required dependency activesupport? [Yn]
Install required dependency activerecord? [Yn]
Install required dependency actionpack? [Yn]
Install required dependency actionmailer? [Yn]
Install required dependency actionwebservice? [Yn]
Successfully installed rails-1.2.0
Successfully installed activesupport-1.4.0
Successfully installed activerecord-1.15.0
Successfully installed actionpack-1.13.0
Successfully installed actionmailer-1.3.0
Successfully installed actionwebservice-1.2.0
Installing ri documentation for activesupport-1.4.0...

lib/active_support/dependencies.rb:52:16: Unrecognized directive
''nodoc''
Installing ri documentation for activerecord-1.15.0...
Installing ri documentation for actionpack-1.13.0...

lib/action_controller/routing.rb:1050:30: '':'' not followed by
identified
or operator

lib/action_controller/routing.rb:1054:39: '':'' not followed by
identified
or operator
Installing ri documentation for actionmailer-1.3.0...
Installing ri documentation for actionwebservice-1.2.0...
Installing RDoc documentation for activesupport-1.4.0...

lib/active_support/dependencies.rb:52:16: Unrecognized directive
''nodoc''
Installing RDoc documentation for activerecord-1.15.0...
Installing RDoc documentation for actionpack-1.13.0...

lib/action_controller/routing.rb:1050:30: '':'' not followed by
identified
or operator

lib/action_controller/routing.rb:1054:39: '':'' not followed by
identified
or operator
Installing RDoc documentation for actionmailer-1.3.0...
Installing RDoc documentation for actionwebservice-1.2.0...

% rails --version
Rails 1.2.0

However, after that upgrade I''m still seeing the same error from rake 
when I try the db migration.

Doing the migrate with --trace now gives this output (sorry, I don''t 
have the output prior to my rails update)

% rake db:migrate --trace
(in /Users/mattp/devel/ruby/depot)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:migrate
== AddPrice: migrating 
=======================================================-- add_column(:products,
:price, :decimal, {:scale=>2, :default=>0,
:precision=>8})
rake aborted!
You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.[]
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:259:in
`type_to_sql''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:122:in
`add_column''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:273:in
`method_missing''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:257:in
`say_with_time''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in
`measure''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:257:in
`say_with_time''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:271:in
`method_missing''
./db/migrate//002_add_price.rb:3:in `real_up''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:210:in
`migrate''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in
`measure''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:210:in
`migrate''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:333:in
`migrate''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:328:in
`migrate''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:295:in
`up''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/migration.rb:286:in
`migrate''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/databases.rake:4
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
`execute''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in
`invoke''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/1.8/thread.rb:135:in
`synchronize''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in
`invoke''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
`run''
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/bin//rake:18

In case of some typo that I''m not spotting (I''ve double and
triple
checked, but that doesn''t necessarily mean I''ve caught
everything) I''m
also going to paste the new migration that I''m trying to run:

% cat db/migrate/002_add_price.rb
class AddPrice < ActiveRecord::Migration
  def self.up
    add_column :products, :price, :decimal, :precision => 8, :scale => 
2, :default => 0
  end

  def self.down
    remove_column :products, :price
  end
end

Thanks for any help!
   Matt
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rob Biedenharn

2009-Jan-12 21:45 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

On Jan 12, 2009, at 3:07 PM, Matthew Pounsett wrote:> Rob Biedenharn wrote:
>>
>> Did you actually run:  rake --trace db:migrate
>> so you can see where the problem happens?
>
> I did, but the trace information is meaningless to me.  I''ll paste
> it in
> below.
>
>> That''s the first thing to do.  Since the OP''s error
happened over 2
>> years ago (!), you might as well consider your error "new"
and post
>> the details.  Anyone who generally follows via the mailing list
isn''t
>> even going to know what the OP context is (unless they go looking  
>> like
>> I had to.)
>
> Good point.  I''m accessing this through a web forum (found the  
> original
> post through google) and didn''t realize there was as associated  
> mailing
> list (though now I see that it says so at the bottom of the page).
>
> As noted, I''m working from the paper version of the AWDwR book. 
I''m
> using Locomotive2 (2.0.8) as my Ruby/Rails install on MacOS.
>
> In section 6.2 of the book where the second migration is created, I  
> ran
> into the following error:
>
> % rake db:migrate
> (in /Users/mattp/devel/ruby/depot)
> == AddPrice: migrating
> =======================================================> --
add_column(:products, :price, :decimal, {:scale=>2, :default=>0,
> :precision=>8})
> rake aborted!
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occured while evaluating nil.[]
>
> (See full trace by running task with --trace)
>
> After finding this thread with the note about rake 1.1.6 vs 1.2
> compatibility of the book''s instructions, I upgraded rake:
>
> % which gem
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/bin//gem
>
> % sudo gem install rails --version 1.2
> Bulk updating Gem source index for: http://gems.rubyforge.org
> Install required dependency activesupport? [Yn]
> Install required dependency activerecord? [Yn]
> Install required dependency actionpack? [Yn]
> Install required dependency actionmailer? [Yn]
> Install required dependency actionwebservice? [Yn]
> Successfully installed rails-1.2.0
> Successfully installed activesupport-1.4.0
> Successfully installed activerecord-1.15.0
You might want to see where the various version of your gems are  
located:
	gem list -d activerecord

I suspect your attempts at installing gems are not affecting the ones  
inside the Locomotive bundle.
>
> Successfully installed actionpack-1.13.0
> Successfully installed actionmailer-1.3.0
> Successfully installed actionwebservice-1.2.0
> Installing ri documentation for activesupport-1.4.0...
>
> lib/active_support/dependencies.rb:52:16: Unrecognized directive  
> ''nodoc''
> Installing ri documentation for activerecord-1.15.0...
> Installing ri documentation for actionpack-1.13.0...
>
> lib/action_controller/routing.rb:1050:30: '':'' not
followed by
> identified
> or operator
>
> lib/action_controller/routing.rb:1054:39: '':'' not
followed by
> identified
> or operator
> Installing ri documentation for actionmailer-1.3.0...
> Installing ri documentation for actionwebservice-1.2.0...
> Installing RDoc documentation for activesupport-1.4.0...
>
> lib/active_support/dependencies.rb:52:16: Unrecognized directive  
> ''nodoc''
> Installing RDoc documentation for activerecord-1.15.0...
> Installing RDoc documentation for actionpack-1.13.0...
>
> lib/action_controller/routing.rb:1050:30: '':'' not
followed by
> identified
> or operator
>
> lib/action_controller/routing.rb:1054:39: '':'' not
followed by
> identified
> or operator
> Installing RDoc documentation for actionmailer-1.3.0...
> Installing RDoc documentation for actionwebservice-1.2.0...
>
>
> % rails --version
> Rails 1.2.0
>
> However, after that upgrade I''m still seeing the same error from
rake
> when I try the db migration.
>
> Doing the migrate with --trace now gives this output (sorry, I
don''t
> have the output prior to my rails update)
>
> % rake db:migrate --trace
> (in /Users/mattp/devel/ruby/depot)
> ** Invoke db:migrate (first_time)
> ** Invoke environment (first_time)
> ** Execute environment
> ** Execute db:migrate
> == AddPrice: migrating
> =======================================================> --
add_column(:products, :price, :decimal, {:scale=>2, :default=>0,
> :precision=>8})
> rake aborted!
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occured while evaluating nil.[]
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> connection_adapters/abstract/schema_statements.rb:259:in
> `type_to_sql''
Note that this error is happening from within the Locomotive bundled  
activerecord-1.14.4

Possibly even more importantly, this is in the abstract adapter rather  
than, say, the MySQL adapter.

What database is defined in your config/database.yml file?  Do you  
have that adapter installed?  Does it support the :decimal type?
>
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> connection_adapters/abstract/schema_statements.rb:122:in
> `add_column''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:273:in
> `method_missing''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:257:in
> `say_with_time''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/1.8/benchmark.rb:293:in
> `measure''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:257:in
> `say_with_time''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:271:in
> `method_missing''
> ./db/migrate//002_add_price.rb:3:in `real_up''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:210:in
> `migrate''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/1.8/benchmark.rb:293:in
> `measure''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:210:in
> `migrate''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:333:in
> `migrate''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:328:in
> `migrate''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:295:in
> `up''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/ 
> migration.rb:286:in
> `migrate''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/tasks/databases.rake:4
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
> `execute''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in
> `execute''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in
> `invoke''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/1.8/thread.rb:135:in
> `synchronize''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in
> `invoke''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
> `run''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in
> `run''
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/bin//rake:18
>
>
> In case of some typo that I''m not spotting (I''ve double
and triple
> checked, but that doesn''t necessarily mean I''ve caught
everything) I''m
> also going to paste the new migration that I''m trying to run:
>
> % cat db/migrate/002_add_price.rb
> class AddPrice < ActiveRecord::Migration
>  def self.up
>    add_column :products, :price, :decimal, :precision => 8, :scale =>
> 2, :default => 0
>  end
>
>  def self.down
>    remove_column :products, :price
>  end
> end
>
> Thanks for any help!
>   Matt
It''s also possible that there''s some subtle mismatch between
the
versions of things expected by the book and the Locomotive bundle.  I  
don''t (and haven''t) use(d) Locomotive, so I may be casting
more
suspicion on it than it deserves. ;-)

Do you get the same/similar error if you change :decimal to :float (or  
perhaps :real)?

-Rob


Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org


--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-12 22:29 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

Rob Biedenharn wrote:> You might want to see where the various version of your gems are
> located:
>   gem list -d activerecord
> 
> I suspect your attempts at installing gems are not affecting the ones
> inside the Locomotive bundle.
Since I''m using the ''gem'' from inside my Locomotive
bundle, I would
expect it to update gems there.. not somewhere else.. but yes that might 
be an incorrect assumption.

% which gem
/Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/i386/bin//gem

% gem list -d activerecord

*** LOCAL GEMS ***

activerecord (1.15.0, 1.14.4)
    Implements the ActiveRecord pattern for ORM.

This seems to imply that was updated, doesn''t it?

> Note that this error is happening from within the Locomotive bundled
> activerecord-1.14.4
Given that it seems that 1.15 is present, how do I affect which one gets 
used?
>  Possibly even more importantly, this is in the abstract adapter rather
> than, say, the MySQL adapter.
> 
> What database is defined in your config/database.yml file?  Do you
> have that adapter installed?  Does it support the :decimal type?
I''m using the mysql adapter.  It worked well enough to get through the 
first migration (creating the relevant table and the first columns).  I 
have no way of identifying what types the adapter supports, other than 
possibly trying a bunch of things.. but that only tells us something if 
the adapter is working as expected (which it might not be).
> Do you get the same/similar error if you change :decimal to :float (or
> perhaps :real)?
Changing :decimal (from the example) to :float allows the migration to 
proceed.  I''m not sure what information to take from that.. is this 
because the wrong version of activerecord is being used, and :float has 
been replaced with :decimal in 1.15?  Is it because there''s something 
wrong with the mysql adapter and only one of the two works?   It seems 
like there could be a half-dozen different reasons for that, and I''m
not
sure which way to go in order to make my install conform more closely to 
what''s expected by the book.

-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rob Biedenharn

2009-Jan-13 14:54 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

On Jan 12, 2009, at 5:29 PM, Matthew Pounsett wrote:
>
> Rob Biedenharn wrote:
>> You might want to see where the various version of your gems are
>> located:
>>  gem list -d activerecord
>>
>> I suspect your attempts at installing gems are not affecting the ones
>> inside the Locomotive bundle.
>
> Since I''m using the ''gem'' from inside my
Locomotive bundle, I would
> expect it to update gems there.. not somewhere else.. but yes that  
> might
> be an incorrect assumption.
>
> % which gem
> /Applications/Locomotive2/Bundles/standardRailsSept2006.locobundle/ 
> i386/bin//gem
>
> % gem list -d activerecord
>
> *** LOCAL GEMS ***
>
> activerecord (1.15.0, 1.14.4)
>    Implements the ActiveRecord pattern for ORM.
>
> This seems to imply that was updated, doesn''t it?
More recent version of gem give you a bit more information:

$ gem list -d activerecord

*** LOCAL GEMS ***

activerecord (2.1.2, 2.1.0, 2.0.2, 1.15.6, 1.15.5, 1.15.3)
     Author: David Heinemeier Hansson
     Rubyforge: http://rubyforge.org/projects/activerecord
     Homepage: http://www.rubyonrails.org
     Installed at (2.1.2): /Library/Ruby/Gems/1.8
                  (2.1.0): /Library/Ruby/Gems/1.8
                  (2.0.2): /Library/Ruby/Gems/1.8
                  (1.15.6): /System/Library/Frameworks/Ruby.framework/ 
Versions/1.8/usr/lib/ruby/gems/1.8
                  (1.15.5): /Library/Ruby/Gems/1.8
                  (1.15.3): /System/Library/Frameworks/Ruby.framework/ 
Versions/1.8/usr/lib/ruby/gems/1.8

     Implements the ActiveRecord pattern for ORM.
>
>
>
>> Note that this error is happening from within the Locomotive bundled
>> activerecord-1.14.4
>
> Given that it seems that 1.15 is present, how do I affect which one  
> gets
> used?
Normallly, you can control which version of a gem with:

require ''rubygems''
gem ''activerecord'', ''=1.15.6''

But Rails expects a consisted set of gems between ActiveRecord,  
ActiveSupport, and ActionPack (views and controllers).  You might be  
able to specify a rails version (and it will specify all the versions  
that it wants).
>
>
>> Possibly even more importantly, this is in the abstract adapter  
>> rather
>> than, say, the MySQL adapter.
>>
>> What database is defined in your config/database.yml file?  Do you
>> have that adapter installed?  Does it support the :decimal type?
>
> I''m using the mysql adapter.  It worked well enough to get through
the
> first migration (creating the relevant table and the first  
> columns).  I
> have no way of identifying what types the adapter supports, other than
> possibly trying a bunch of things.. but that only tells us something  
> if
> the adapter is working as expected (which it might not be).
>
>> Do you get the same/similar error if you change :decimal to :float  
>> (or
>> perhaps :real)?
>
> Changing :decimal (from the example) to :float allows the migration to
> proceed.  I''m not sure what information to take from that.. is
this
> because the wrong version of activerecord is being used, and :float  
> has
> been replaced with :decimal in 1.15?  Is it because there''s
something
> wrong with the mysql adapter and only one of the two works?   It seems
> like there could be a half-dozen different reasons for that, and
I''m
> not
> sure which way to go in order to make my install conform more  
> closely to
> what''s expected by the book.
I''d say that the version of the MySQL connection adapter you have does
not support the :decimal type (regardless of the underlying version of  
the MySQL database).  :float and :decimal are separate types so (at  
least in current versions) both exist (and work!).

If the particular Locomotive bundle is meant to have the "not quite  
1.2" Rails version expected by the ADWR2, then I''d have also
expected
it to work.  (Even if it was a Rails 1.2, it ought to be working.)

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org


--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-13 18:08 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

Rob Biedenharn wrote:> I''d say that the version of the MySQL connection adapter you have
does
> not support the :decimal type (regardless of the underlying version of
> the MySQL database).  :float and :decimal are separate types so (at
> least in current versions) both exist (and work!).
Okay, so I''ve attempted to update/replace the mysql adapter and run
into
a different problem that I can''t find a documented solution for.

(this is perhaps getting a bit off topic from the original post, but...) 
:)

My mysql install isn''t in the standard places gem seems to want to look
-- it''s installed by fink which puts everything into /sw.   How can I 
tell gem how to resolve -lmysqlclient?  After reading through the --help 
and rubygems web site command reference I don''t see a way to specify -L
directories to the gem installer.

Thanks for all your help so far, Rob.  I really appreciate it.
   Matt


-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rob Biedenharn

2009-Jan-13 19:08 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

On Jan 13, 2009, at 1:08 PM, Matthew Pounsett wrote:> Rob Biedenharn wrote:
>> I''d say that the version of the MySQL connection adapter you
have
>> does
>> not support the :decimal type (regardless of the underlying version  
>> of
>> the MySQL database).  :float and :decimal are separate types so (at
>> least in current versions) both exist (and work!).
>
> Okay, so I''ve attempted to update/replace the mysql adapter and
run
> into
> a different problem that I can''t find a documented solution for.
>
> (this is perhaps getting a bit off topic from the original post,  
> but...)
> :)
>
> My mysql install isn''t in the standard places gem seems to want to
> look
> -- it''s installed by fink which puts everything into /sw.   How
can I
> tell gem how to resolve -lmysqlclient?  After reading through the -- 
> help
> and rubygems web site command reference I don''t see a way to
specify
> -L
> directories to the gem installer.
>
> Thanks for all your help so far, Rob.  I really appreciate it.
>   Matt

Perhaps define LIBRARY_PATH in your environment?  I can''t remember if  
there is a pure ruby adapter for MySQL (I presume that your problem is  
during the build of the native component).

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org


--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Matthew Pounsett

2009-Jan-13 19:45 UTC

head link

Re: Rake aborted! You have a nil object when you didn''t expe

Rob Biedenharn wrote:> Perhaps define LIBRARY_PATH in your environment? I can''t remember
if
> there is a pure ruby adapter for MySQL (I presume that your problem is
> during the build of the native component).
I''m not sure what you mean by "pure ruby adapter." There is
supposedly
a built-in adapter, but notes in AWDwR suggest that it''s incomplete.

Yes, the problem comes during the build of the native component. The
mkmf.log file that''s being left behind has several errors in it, but
the
predominant error is the linker being unable to find the mysqlclient
library. The rest seem related to that (missing function calls, etc.)

No joy on setting LIBRARY_PATH or LD_LIBRARY_PATH, I''m afraid. I find
it a bit odd that there''s no command line option to pass build
arguments
down to the compile of the native component. I suppose if I really
wanted to make it happen this way I could build my own gem... but it
might just be easier to rip out Locomotive and do a fully manual install
of ruby/rails. I went with it originally because my package manager
(Fink) is now using Rails 2.0.2 which is even less compatible with the
book''s instructions, but if Loco is going to cause me this much
trouble,
it''s not worth it.

Thanks again for all your help Rob! We may not have got Locomotive
working, but I ended up with a far, far better understanding of what''s
happening with all the little components than I expected to have at this
point in learning Ruby. :)

Cheers,
Matt
--
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Rails - Dec 2006 - Rake aborted! You have a nil object when you didn't expect it!

Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expect it!

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe

Re: Rake aborted! You have a nil object when you didn''t expe