Goalie

If you're using Goalie for custom error pages, you may need to explicitly add require 'goalie' to config/application.rb (in addition to require 'goalie/rails') so that the monkeypatch will work. (This will be obvious if it is needed because your app won't start up: you'll see a cryptic error message about Goalie::CustomErrorPages.render_exception not being defined.)

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For more information on rollbar-gem, please see the docs here.