undefined method `best_in_place' in Class in ruby on rails

Question

I follow http://railscasts.com/episodes/302-in-place-editing?view=asciicast for text inline editing

gem 'best_in_place'

//= require jquery
//= require jquery_ujs
//= require jquery.purr
//= require best_in_place
//= require turbolinks
//= require_tree .

But when I write

<%= best_in_place product_comment, :description %>

It gives error undefined method `best_in_place' for #<#:0xb43cc3dc>

Answer 1

The only reason why you could get this error (apart from other crazy reasons like dynamic undefining of methods in your code) is that best_in_place gem has not been loaded. Just restart your server and all should work