Rails 3 invalid multibyte char (US-ASCII)

Instead of adding # coding: UTF-8 try to add # encoding: UTF-8 on the first line of the file.

ruby-on-rails ruby utf-8 ascii ruby-1.9

Just add the following line as the first line in the file:

# -*- coding: utf-8 -*-

and it will work.

ruby-on-rails ruby utf-8 ascii ruby-1.9

Add a magic comment in the script where you use non-ascii chars? It should go on top of the script.

# encoding: utf-8

It worked for me like charm.

Or if you want to make the project wide, you have an option of magic-encoding gem

CodeHunter