Ironruby core - Feb 2009 - possible problem on mono

Hi

When I try to run the igem script on mono it always comes back with a
NullReferenceException.

igem list --debug --backtrace
ERROR:  While executing gem ... (System::NullReferenceException)
    Object reference not set to an instance of an object
    IronRuby.Libraries:0:in `TryFlattenArray''
    :0:in `flatten!''
    mscorlib:0:in `_stub_$2591''
    gem_runner.rb:25:in `run''
    mscorlib:0:in `_stub_$2495''
    igem:0

Is this known or should I add it to the bugs?
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Could you try to narrow it down to a simple repro? What parameters are passed to
?flatten!? that make it fail? (You may want to run it with ?D to get full stack
information, although it will be slower).

Tomas

From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Ivan Porto Carrero
Sent: Friday, February 20, 2009 12:31 AM
To: ironruby-core
Subject: [Ironruby-core] possible problem on mono

Hi

When I try to run the igem script on mono it always comes back with a
NullReferenceException.

igem list --debug --backtrace
ERROR:  While executing gem ... (System::NullReferenceException)
    Object reference not set to an instance of an object
    IronRuby.Libraries:0:in `TryFlattenArray''
    :0:in `flatten!''
    mscorlib:0:in `_stub_$2591''
    gem_runner.rb:25:in `run''
    mscorlib:0:in `_stub_$2495''
    igem:0

Is this known or should I add it to the bugs?
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I''ll try but i''m just moving into a new flat so it may take a
few days
before I get some actual pc time
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
GSM: +32.486.787.582
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim



On Fri, Feb 20, 2009 at 5:59 PM, Tomas Matousek <
Tomas.Matousek at microsoft.com> wrote:
>  Could you try to narrow it down to a simple repro? What parameters are
> passed to "flatten!" that make it fail? (You may want to run it
with ?D to
> get full stack information, although it will be slower).
>
>
>
> Tomas
>
>
>
> *From:* ironruby-core-bounces at rubyforge.org [mailto:
> ironruby-core-bounces at rubyforge.org] *On Behalf Of *Ivan Porto Carrero
> *Sent:* Friday, February 20, 2009 12:31 AM
> *To:* ironruby-core
> *Subject:* [Ironruby-core] possible problem on mono
>
>
>
> Hi
>
> When I try to run the igem script on mono it always comes back with a
> NullReferenceException.
>
> igem list --debug --backtrace
> ERROR:  While executing gem ... (System::NullReferenceException)
>     Object reference not set to an instance of an object
>     IronRuby.Libraries:0:in `TryFlattenArray''
>     :0:in `flatten!''
>     mscorlib:0:in `_stub_$2591''
>     gem_runner.rb:25:in `run''
>     mscorlib:0:in `_stub_$2495''
>     igem:0
>
> Is this known or should I add it to the bugs?
>
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
>
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Hi,

I''ve got the same error, but I''m just starting to use
IronRuby. The igem
doesn''t work and it''s very hard to do anything useful without
gems.

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

Which same error? Is anyone else having problems with igem on Mono? Have you
grabbed the build from here: http://github.com/casualjim/ironruby-mono-builds ?

~js
> -----Original Message-----
> From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> bounces at rubyforge.org] On Behalf Of Rafael Rosa
> Sent: Tuesday, March 03, 2009 4:57 PM
> To: ironruby-core at rubyforge.org
> Subject: Re: [Ironruby-core] possible problem on mono
> 
> Hi,
> 
> I''ve got the same error, but I''m just starting to use
IronRuby. The
> igem
> doesn''t work and it''s very hard to do anything useful
without gems.
> 
> Cheers,
> Rafael
> www.rafaelrosafu.com
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core

Hi,

Yes, I tried to build from source, but had a lot of problems and then I 
found these builds. Calling igems gives the same error Ivan had 
reported, here a fresh result:

~/Projetos : igem list --debug
ERROR:  While executing gem ... (System::NullReferenceException)
    Object reference not set to an instance of an object
  IronRuby.Libraries:0:in `TryFlattenArray''
  :0:in `flatten!''
  mscorlib:0:in `CallSite.Target''
  gem_runner.rb:25:in `run''
  mscorlib:0:in `CallSite.Target''
  igem:0


If I try to call just "igem" it shows the help, no problem, but if I
try
to run "igem list" or "igem install any_gem" it shows the
error above
adding the --debug directive, and shows just the first two lines of the 
error if run without it.

Hope it helps.

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

You can get the same behaviour by requiring rubygems I believe.

When I get back from work tonight I''ll try to track down why this is
happening. I had it on my to-do list for a while now.

On Wed, Mar 4, 2009 at 7:39 AM, Rafael Rosa <lists at ruby-forum.com>
wrote:
> Hi,
>
> Yes, I tried to build from source, but had a lot of problems and then I
> found these builds. Calling igems gives the same error Ivan had
> reported, here a fresh result:
>
> ~/Projetos : igem list --debug
> ERROR:  While executing gem ... (System::NullReferenceException)
>    Object reference not set to an instance of an object
>  IronRuby.Libraries:0:in `TryFlattenArray''
>  :0:in `flatten!''
>   mscorlib:0:in `CallSite.Target''
>   gem_runner.rb:25:in `run''
>   mscorlib:0:in `CallSite.Target''
>  igem:0
>
>
> If I try to call just "igem" it shows the help, no problem, but
if I try
> to run "igem list" or "igem install any_gem" it shows
the error above
> adding the --debug directive, and shows just the first two lines of the
> error if run without it.
>
> Hope it helps.
>
> Cheers,
> Rafael
> www.rafaelrosafu.com
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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Hey,

On 3/4/09, Rafael Rosa <lists at ruby-forum.com>
wrote:
>  If I try to call just "igem" it shows the help, no problem, but
if I try
>  to run "igem list" or "igem install any_gem" it shows
the error above
>  adding the --debug directive, and shows just the first two lines of the
>  error if run without it.
Which version of Mono are you using? It works fine on Mono HEAD and
Mono 2.4. If you''re interested in running IronRuby on Mono, I suggest
you use a (very) recent Mono anyway, as the DLR and IronRuby sometimes
kick Mono''s tires hard.

-- 
Jb Evain  <jb at nurv.fr>

I''m using it with mono head.. I''ll try when I''ve done
my 8 hours of
mercenary time.

On Wed, Mar 4, 2009 at 11:07 AM, Jb Evain <jb at nurv.fr> wrote:
> Hey,
>
> On 3/4/09, Rafael Rosa <lists at ruby-forum.com> wrote:
> >  If I try to call just "igem" it shows the help, no problem,
but if I try
> >  to run "igem list" or "igem install any_gem" it
shows the error above
> >  adding the --debug directive, and shows just the first two lines of
the
> >  error if run without it.
>
> Which version of Mono are you using? It works fine on Mono HEAD and
> Mono 2.4. If you''re interested in running IronRuby on Mono, I
suggest
> you use a (very) recent Mono anyway, as the DLR and IronRuby sometimes
> kick Mono''s tires hard.
>
> --
> Jb Evain  <jb at nurv.fr>
>  _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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On 3/4/09, Ivan Porto Carrero <ivan at flanders.co.nz>
wrote:
> I''m using it with mono head.. I''ll try when I''ve
done my 8 hours of
> mercenary time.
Then it''s either a difference caused by gmcs or in the branch, as
I''m
still building origin with csc.

-- 
Jb Evain  <jb at nurv.fr>

On 3/4/09, Jb Evain <jb at nurv.fr> wrote:
> On 3/4/09, Ivan Porto Carrero <ivan at flanders.co.nz> wrote:
>  > I''m using it with mono head.. I''ll try when
I''ve done my 8 hours of
>  > mercenary time.
>
>
> Then it''s either a difference caused by gmcs or in the branch, as
I''m
>  still building origin with csc.
It''s indeed an issue with gmcs which miscompiles the using in
TryFlattenArray.

-- 
Jb Evain  <jb at nurv.fr>

I''m using Mono 2.2, I''ll try to install the trunk version. I
read
somewhere that this version would work with 2,2. I''ll inform you guys
if
it worked or not.

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

On 3/4/09, Jb Evain <jb at nurv.fr> wrote:
> It''s indeed an issue with gmcs which miscompiles the using in
TryFlattenArray.
This issue is fixed in Mono'' HEAD. The fix is not going to be
backported to 2.4 though. Attached is a diff for the Mono branch which
work arounds the particular problem.

-- 
Jb Evain  <jb at nurv.fr>
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Great :D


On Wed, Mar 4, 2009 at 9:03 PM, Jb Evain <jb at nurv.fr> wrote:
> On 3/4/09, Jb Evain <jb at nurv.fr> wrote:
> > It''s indeed an issue with gmcs which miscompiles the using in
> TryFlattenArray.
>
> This issue is fixed in Mono'' HEAD. The fix is not going to be
> backported to 2.4 though. Attached is a diff for the Mono branch which
> work arounds the particular problem.
>
> --
> Jb Evain  <jb at nurv.fr>
>
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
>
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I downloaded the the latest ironruby-mono-builds and the problem with 
TryFlattenArray is gone, now "igem list" works, but when I tried to 
install a gem I got the following error:

~ : igem install rspec --debug
ERROR:  While executing gem ... (URI::InvalidComponentError)
    bad component(expected absolute path component): latest_specs.4.8
mscorlib:0:in `CallSite.Target'': undefined method `join'' for 
nil:NilClass (NoMethodError)
  from gem_runner.rb:25:in `run''
  from mscorlib:0:in `CallSite.Target''
  from igem:0


And "iirb" isn''t working:

~ : iirb --debug
Microsoft.Scripting.Core:0:in `Reference'': variable
''$exception'' of type
''System.Exception'' referenced from scope 
''??;suspend_input_method;irb.rb;213;'', but it is not defined
(TypeError)
  from Microsoft.Scripting.Core:0:in `VisitParameter''
  from Microsoft.Scripting.Core:0:in `Accept''
  from Microsoft.Scripting.Core:0:in `Visit''
  from Microsoft.Scripting.Core:0:in `VisitBinary''
  from Microsoft.Scripting.Core:0:in `Accept''

I''ll try to build a latest Mono version and see what happens.

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

rename your .gemrc (hidden in your home folder) file and try again




On Thu, Mar 5, 2009 at 6:12 AM, Rafael Rosa <lists at ruby-forum.com>
wrote:
> I downloaded the the latest ironruby-mono-builds and the problem with
> TryFlattenArray is gone, now "igem list" works, but when I tried
to
> install a gem I got the following error:
>
> ~ : igem install rspec --debug
> ERROR:  While executing gem ... (URI::InvalidComponentError)
>    bad component(expected absolute path component): latest_specs.4.8
> mscorlib:0:in `CallSite.Target'': undefined method `join''
for
> nil:NilClass (NoMethodError)
>  from gem_runner.rb:25:in `run''
>  from mscorlib:0:in `CallSite.Target''
>  from igem:0
>
>
> And "iirb" isn''t working:
>
> ~ : iirb --debug
> Microsoft.Scripting.Core:0:in `Reference'': variable
''$exception'' of type
> ''System.Exception'' referenced from scope
> ''??;suspend_input_method;irb.rb;213;'', but it is not
defined (TypeError)
>  from Microsoft.Scripting.Core:0:in `VisitParameter''
>  from Microsoft.Scripting.Core:0:in `Accept''
>  from Microsoft.Scripting.Core:0:in `Visit''
>  from Microsoft.Scripting.Core:0:in `VisitBinary''
>  from Microsoft.Scripting.Core:0:in `Accept''
>
> I''ll try to build a latest Mono version and see what happens.
>
> Cheers.
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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Thanks, I tought it was a related problem. More google, less complaining 
:)

I''m taking a look at it now, I have .NET people meeting this weekend
and
I want to show them IronRuby.

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

Hey,

On 3/5/09, Rafael Rosa <lists at ruby-forum.com>
wrote:
>  And "iirb" isn''t working:
I can reproduce that. It''s another issue that is either in gmcs or in
the branch. I''ll investigate.

-- 
Jb Evain  <jb at nurv.fr>

On 3/5/09, Jb Evain <jb at nurv.fr> wrote:
>  On 3/5/09, Rafael Rosa <lists at ruby-forum.com> wrote:
>  >  And "iirb" isn''t working:
>
>
> I can reproduce that. It''s another issue that is either in gmcs or
in
>  the branch. I''ll investigate.
That''s an issue with the branch, as IronRuby compiled from origin with
`rake compile mono=1` doesn''t exhibit this behavior.

-- 
Jb Evain  <jb at nurv.fr>