invalid multibyte char (US-ASCII) MAC OSX RUBY on Rails Without magic enconding?

On ruby 1.8.7 I had no problems with swedish chars ÅÄÖ but now on ruby 1.9.2 this exception comes up. Strangley enough it does not appear on my Ubuntu machine.

Can it be fixed without M开发者_运维问答agic encoding or putting #encoding utf-8 on top of every ruby file with Swedish chars?

Looks like there is no solution to avoid this Error without adding encoding line

Add "# coding: utf-8" to all files

Hmm, try to add this

export LC_ALL="en_US.UTF-8"

to your ~/.profile, ~/.bash_profile or equivalent. It worked here!