I don't know the reason behind this problem. I fixed (bypassed?) it by 
adding if condition in the tzinfo_timezone plugin's init.rb file.
require 'tzinfo_timezone'
New init.rb file:
# remove the existing TimeZone constant
if Object.const_defined?(:TimeZone)
  Object.send(:remove_const, :TimeZone)
end

# Use TzinfoTimezone as the TimeZone class
Object::TimeZone = TzinfoTimezone


Please reply if you know the reason behind this problem.

-
Shantanu.


Shantanu Pavgi wrote:
> I am trying to get my rails project working on a new machine. I am using
> OpenSuse 10.3 and following steps were performed,
> 1. installed rubygems
> 2. installed Rails (1.x) using Suse repository - it didn't have latest
> version.
> 3. updated gem version and Rails version.
> 4. installed other gems such rcov
> 5. installed 'tzinfo_timezone' plugin
> 
> Now 'rake db:create:all' or 'script/server' gives me error as -
> [code=]
> 
> /home/pavgi/agenda32/vendor/plugins/tzinfo_timezone/init.rb:4:in
> `remove_const': constant Object::TimeZone not defined (NameError)
>         from
> /home/pavgi/agenda32/vendor/plugins/tzinfo_timezone/init.rb:4:in `send'
>         from
> /home/pavgi/agenda32/vendor/plugins/tzinfo_timezone/init.rb:4:in
> `evaluate_init_rb'
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:103:in
> `evaluate_init_rb'
>         from
> /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/core_ext/kernel/reporting.rb:11:in
> `silence_warnings'
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:99:in
> `evaluate_init_rb'
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:44:in `load'
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin/loader.rb:33:in
> `load_plugins'
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin/loader.rb:32:in
> `each'
>          ... 17 levels...
>         from
> /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/server.rb:49
>         from
> /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require'
>         from
> /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
>         from script/server:3
> [/code]
> 
> Now, if I comment out the line init.rb:4
> [code=]
> Object.send(:remove_const, :TimeZone)
> [/code]
> then above rake command and server start runs successfully. What and
> where could be the problem? Where do I define the constant
> Object::TimeZone? Any help for debugging? (The same code runs
> successfully on my old machine.)
> 
> Thanks,
> Shantanu.

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