active_support/secure_random LoadError

Hello Guys,

I am migrating my rails app from Rails 2.3 to 3.2. I have ActiveSupport 3.2 dependency but at app startup I keep getting following error. I am not using active_support/secure_random anywhere in my code.

Error Logs -

[Thu Sep 04 22:52:56.014721 2014] [:warn] [pid 1440] FastCGI: server “AppRootFolder/bin/rails_dispatch.fcgi” (pid 1554) terminated by calling exit with status ‘1’

AppRootFolder/ruby1.9/gems/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:317:in rescue in depend_on': No such file to load -- active_support/secure_random (LoadError) from AppRootFolder/ruby1.9/gems/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:312:independ_on’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:225:in `        require_dependency'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/engine.rb:444:in`block (2 levels) in eager_load!’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/engine.rb:443:in `        each'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/engine.rb:443:in`block in eager_load!’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/engine.rb:441:in `        each'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/engine.rb:441:in`eager_load!’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/application/finisher.rb:53:in `        block in <module:Finisher>'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/initializable.rb:30:in`instance_exec’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/initializable.rb:30:in `        run'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/initializable.rb:55:in`block in run_initializers’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/initializable.rb:54:in `        each'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/initializable.rb:54:in`run_initializers’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/application.rb:136:in `        initialize!'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/railties-3.2.19/lib/rails/railtie/configurable.rb:30:in`method_missing’

    from AppRootFolder/var/rails-root/config/environment.rb:4:in `        <top (required)>'

from AppRootFolder/ruby1.9/1.9.1/rubygems/custom_require.rb:36:in`require’

    from AppRootFolder/ruby1.9/1.9.1/rubygems/custom_require.rb:36:in `        require'

from AppRootFolder/var/rails-root/config.ru:3:in`block in ’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `        instance_eval'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in`initialize’

    from AppRootFolder/var/rails-root/config.ru:in `        new'

from AppRootFolder/var/rails-root/config.ru:in`’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in `        eval'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in`parse_file’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:200:in `        app'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:304:in`wrapped_app’

    from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:254:in `        start'

from AppRootFolder/ruby1.9/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:137:in`start’

    from AppRootFolder/bin/rails_dispatch.fcgi:20:in `'