ruby on rails - uninitialized constant ActionView::CompiledTemplates::RAILS_ENV -


i added application.html.erb file:

<%= render :partial => 'layouts/ga' if rails_env == 'production' %>

and error uninitialized constant actionview::compiledtemplates::rails_env on exact line.

when take if rails_env == 'production' off, error goes away isn't suppose work fine? error tries tell me?

rails_env should key in environment variable array env. try:

<%= render :partial => 'layouts/ga' if env["rails_env"] == 'production' %>

or, 

<%= render :partial => 'layouts/ga' if rails.env.production? %>

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