Problem with ember.variant in configuration files

[Draiken]

So, I recently upgraded ember from an older version, and had to add the config.ember.variant = :production to my config/environments/production.rb

The problem is, when precompiling the assets, everything goes fine, but when I start the server, I get this error:

'method_missing': undefined method `ember' for #Rails::Application::Configuration:0x00000003e46710 (NoMethodError)

https://gist.github.com/3793642 (stack trace)

So I remove the variant line, and the app boots normally.

But with it removed, I get errors when precompiling the assets.
I am using ember-rails 0.7.0

[Draiken]

Problem was that the ember-rails gem was on the assets group of the Gemfile.

[yohsuzuki]

Shouldn't it be in the :assets group? Does it need to be around at runtime?

[terenceponce]

I'm using Rails 4 and I'm having this problem right now. Anyone found the solution?

[avinmathew]

I recently came across the same error on a new environment. For some reason the Railtie in ember_rails.rb was never reached. When I traced all the require calls, it was crashing out around require 'execjs' called from the Barber gem. I then realised that I hadn't installed Node.js on that machine. It seems like the error from ExecJS caused the process to exit, but Rails still continued to load.

[jamescgibson]

@avinmathew Thank you for this!