Patrick Joyce

September 19, 2007

Confusing Rails Error Message

ArgumentError: Admin is not missing constant UsersController!
    method load_missing_constant in dependencies.rb at line 240
    method const_missing in dependencies.rb at line 452
    method send in dependencies.rb at line 470
    method const_missing in dependencies.rb at line 470
    method setup_without_fixtures in users_controller_test.rb at line 11
    method setup in fixtures.rb at line 576

Note to self: the above error message normally means that you are missing the scope prefix and the :: operator. So in the above example the error would be fixed by prepending “Admin::” to the reference to the class “UsersController” on line 11 of users_controller_test.rb.

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