Today I've spent much of the day with an error that left me in the JavaScript console. Specifically the error was:
Uncaught TypeError: Object [object Object] has no method 'live'
And as I was trying to configure CKEditor, I thought it was him, but to my surprise, the culprit was the gem jquery-rails specifically version 2.2.0 which apparently does not get along very well with version rails_admin 0.1.2.
To fix this we changed the version of this gem to 2.1.4 and everything arranged.