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Jeff Wang

2010-Aug-19 04:22 UTC

Help: "500 Internal Server Error"

Hi guys,

I am a completely ruby & rails newbie. i have being struggling on this
issue for almost 2 days, still can not figure out the problem.

there are two websites i''m trying to set up a development environment
on
my pc running windows xp 32 bit version. a front-end customer facing
page & back-end admin page.

the procedure i have gone through is:
1. install ruby version 1.8.6
2. update rubygems version to the latest
3. install rails version 2.3.5
4. install mysql adapter
5. install mongrel & mongrel_service
6. install all required gems for the application
7. create a fresh new rails app & replace the required folders & files
from the source
8. create & migrate the mysql database and then resoted it with the data
from live site
9. start the server and it''s running without any problems for the
front-end site

then i went through the same process (from 7 to 9) for the back-end
admin site as well, and type "rake gems:install" to install any
required
gems. then start the server, error shows as the following in the log
file:

----------------------------------------------------------------
** has_many_polymorphs: autoload hook invoked
** has_many_polymorphs: preloading parent model Tag
** has_many_polymorphs: associating Tag.taggables
   [4;36;1mSQL (0.0ms) [0m    [0;1mSET NAMES ''utf8'' [0m
   [4;35;1mSQL (0.0ms) [0m    [0mSET SQL_AUTO_IS_NULL=0 [0m
   [4;36;1mProject Columns (0.0ms) [0m    [0;1mSHOW FIELDS FROM
`projects` [0m
   [4;35;1mTagging Columns (0.0ms) [0m    [0mSHOW FIELDS FROM
`taggings` [0m
** has_many_polymorphs: associating Tag.taggables
   [4;36;1mUser Columns (0.0ms) [0m    [0;1mSHOW FIELDS FROM `users` [0m
** has_many_polymorphs: preloading parent model Tagging
/!\ FAILSAFE /!\  Thu Aug 19 13:49:01 +1000 2010
  Status: 500 Internal Server Error
  Expected C:/rails/admin/app/helpers/admin/activities_helper.rb to
define Admin::ActivitiesHelper
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:426:in
`load_missing_constant''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in
`const_missing''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:361:in
`constantize''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`each''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`constantize''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/string/inflections.rb:162:in
`constantize''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:137:in
`helper''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:115:in
`each''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:115:in
`helper''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:120:in
`helper''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:115:in
`each''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/helpers.rb:115:in
`helper''
    C:/rails/admin/app/controllers/application_controller.rb:2
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_without_new_constant_marking''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_file''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in
`new_constants_in''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:379:in
`load_file''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:259:in
`require_or_load''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:425:in
`load_missing_constant''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in
`const_missing''
   
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in
`const_missing''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:89:in
`dispatch''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in
`_call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in
`build_middleware_stack''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in
`cache''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in
`cache''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`synchronize''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in
`run''
   
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in
`each''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in
`call''
   
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/chunked.rb:15:in
`call''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:64:in
`process''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:159:in
`process_client''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`each''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`process_client''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`initialize''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`new''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`initialize''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`new''
   
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`run''
    c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:34:in
`run''
    c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:111
    c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require''
    c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
    script/server:3
-----------------------------------------------------------------

any one know what is going on with this error. i think i installed all
required gems.

thanks a lot.
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Xianggong

2010-Aug-19 04:25 UTC

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Re: Help: "500 Internal Server Error"

C:/rails/admin/app/controllers/application_controller.rb:2

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Jeff Wang

2010-Aug-19 05:19 UTC

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Re: Help: "500 Internal Server Error"

Tim Teng wrote:> C:/rails/admin/app/controllers/application_controller.rb:2
i comment out that line then it works, great.

thx.
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rajeevsharma86

2010-Aug-19 05:24 UTC

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Re: Re: Help: "500 Internal Server Error"

hey what was that line please suggest

On Thu, Aug 19, 2010 at 10:49 AM, Jeff Wang
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Tim Teng wrote:
> > C:/rails/admin/app/controllers/application_controller.rb:2
>
> i comment out that line then it works, great.
>
> thx.
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> "Ruby on Rails: Talk" group.
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>

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Thanks:
Rajeev sharma

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