Rails - Jan 2007 - What are Stack Frames?

installed 1.2.1, but in my app that matters, server
won''t start (will start with other apps):
** Starting Rails with development environment ...

C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:377:in
`new_constants_in'': You have a nil object when you didn''t
expect it!
(NoMethodError)
You might have expected an instance of Array.
The error occurred while evaluating nil.empty?  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:203:in
`load_file''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:95:in
`require_or_load''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:61:in
`depend_on''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:443:in
`require_dependency''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/helpers.rb:67:in
`helper''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_controller/helpers.rb:58:in
`helper''
  from
C:/InstantRails/rails_apps/pazap/config/../vendor/plugins/debug-view-helper/lib/view_debug_helper.rb:94
  from
C:/InstantRails/rails_apps/pazap/config/../vendor/plugins/debug-view-helper/lib/view_debug_helper.rb:93
   ... 20 levels...
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.13.3-mswin32/lib/mongrel/command.rb:199:in
`run''
  from
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.13.3-mswin32/bin/mongrel_rails:235
  from C:\InstantRails\ruby\bin\mongrel_rails:18
  from -e:3
#############################################################################

Looks like there are new functions in the dependencies.rb file, the this
one seems to be giving me the problem:

   # Remove the stack frames that we added.
    if defined?(watch_frames) && ! watch_frames.empty?
      frame_ids = watch_frames.collect(&:object_id)
      constant_watch_stack.delete_if do |watch_frame|
        frame_ids.include? watch_frame.object_id
      end

What are stack frames?

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I''m getting exactly the same error as you after upgrading one of my
apps. One is fine but the other throws the same error as above.

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Cool.. i don''t feel so bad : P
We wait patiently for someone from core...

unknown wrote:
> I''m getting exactly the same error as you after upgrading one of
my
> apps. One is fine but the other throws the same error as above.

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I notice you are running Instant Rails. I''m running Locomotive on OS X
- not sure if this is relevant.

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Hey Dominic

How you going with this issue? I''m still stuck :-(

Richard

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Dominic Son wrote:
> 
> installed 1.2.1, but in my app that matters, server
> won''t start (will start with other apps):
> ** Starting Rails with development environment ...
> 
>
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:377:in
> 
> `new_constants_in'': You have a nil object when you didn''t
expect it!
> (NoMethodError)
> You might have expected an instance of Array.
> The error occurred while evaluating nil.empty?  from
>
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/dependencies.rb:203:in
`load_file''
I had the same problem - it was caused by the plugin selenium_on_rails. Check
whether your plugins are compatible with Rails 1.2


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Yep - just removed a couple of plugins that weren''t needed for
production, and now the app starts fine.

The issue was with either the ar_fixtures and/or svn_tools and/or
debug_view_helper plugin(s).

Thanks for pointing me in the right direction.


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I believe there is an issue with debug_view_helper.

I added:

ActionView::Base.send :include, ViewDebugHelper

to init.rb

and removed:

ActionController::Base.class_eval do
 helper :view_debug
end

from view_debug_helper.rb

It seems to work.

-Craig

On Jan 24, 6:09 am, infoa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
wrote:
> Yep - just removed a couple of plugins that weren''t needed for
> production, and now the app starts fine.
>
> The issue was with either the ar_fixtures and/or svn_tools and/or
> debug_view_helper plugin(s).
> 
> Thanks for pointing me in the right direction.

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On Jan 25, 4:19 am, "Craig Steinberger"
<firedoc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I believe there is an issue with debug_view_helper.
>
> I added:
>
> ActionView::Base.send :include, ViewDebugHelper
> 
> to init.rb[...]
Ah, nice detective work - thanks Craig.


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