Rails - Feb 2011 - ActionMailer::Base.default_url_options

Hi,

I want so set a default url for ActionMailer. I know, 
ActionMailer::Base.default_url_options is deprecated, so I use 
  config.action_mailer.default_url_options = {
    :host => "localhost"
  }

in my environments (test.rb, production.rb, ...). The problem is, I get a 
deprecation error and rails won''t start. I have no solution...

Any hints for me?

Testing started at 16:31 ...
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/base.rb:763:in
`deprecated_url_options'': You can no longer call 
ActionMailer::Base.default_url_options directly. You need to set 
config.action_mailer.default_url_options. If you are using ActionMailer 
standalone, you need to include the routing url_helpers directly. 
(RuntimeError)
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/base.rb:756:in
`default_url_options=''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/railtie.rb:22:in
`block (3 levels) in <class:Railtie>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/railtie.rb:22:in
`each''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/railtie.rb:22:in
`block (2 levels) in <class:Railtie>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:36:in
`instance_eval''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:36:in
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    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:43:in
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    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:42:in
`each''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:42:in
`run_load_hooks''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/base.rb:772:in
`<class:Base>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/base.rb:333:in
`<module:ActionMailer>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/actionmailer-3.0.3/lib/action_mailer/base.rb:9:in
`<top (required)>''
    from 
/Users/sebastian/Sites/rails/sampleapp/app/mailers/contact_mailer.rb:1:in 
`<top (required)>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in
`require''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in
`block in require''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:227:in
`load_dependency''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in
`require''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:346:in
`require_or_load''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:300:in
`depend_on''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:216:in
`require_dependency''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/engine.rb:138:in
`block (2 levels) in eager_load!''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/engine.rb:137:in
`each''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/engine.rb:137:in
`block in eager_load!''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/engine.rb:135:in
`each''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/engine.rb:135:in
`eager_load!''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application.rb:108:in
`eager_load!''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application/finisher.rb:41:in
`block in <module:Finisher>''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/initializable.rb:25:in
`instance_exec''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/initializable.rb:25:in
`run''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/initializable.rb:50:in
`block in run_initializers''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/initializable.rb:49:in
`each''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/initializable.rb:49:in
`run_initializers''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application.rb:134:in
`initialize!''
    from 
/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application.rb:77:in
`method_missing''
    from /Users/sebastian/Sites/rails/sampleapp/config/environment.rb:5:in 
`<top (required)>''
    from /Users/sebastian/Sites/rails/sampleapp/spec/spec_helper.rb:15:in 
`require''
    from /Users/sebastian/Sites/rails/sampleapp/spec/spec_helper.rb:15:in 
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/spork-0.9.0.rc2/lib/spork.rb:23:in
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`<top (required)>''
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/Users/sebastian/Sites/rails/sampleapp/spec/controllers/events/contact_messages_controller_spec.rb:2:in
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/Users/sebastian/Sites/rails/sampleapp/spec/controllers/events/contact_messages_controller_spec.rb:2:in
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/rspec-core-2.4.0/lib/rspec/core/command_line.rb:18:in
`run''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/rspec-core-2.4.0/lib/rspec/core/runner.rb:55:in
`run_in_process''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/rspec-core-2.4.0/lib/rspec/core/runner.rb:46:in
`run''
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/Users/sebastian/.rvm/gems/ruby-1.9.2-p136/gems/rspec-core-2.4.0/lib/rspec/core/runner.rb:10:in
`block in autorun''

Regards,
sewid

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Hi,

I just found out, that this problem only occurs, when using
  config.cache_classes = true
in my config/test.rb or config/development.rb. If I set it to false, 
everything works fine.

Any ideas, why?

Regards and thanks a lot,
sewid

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