i18n doesn't work at production environment on heroku

Question

I have seen more than one hundred posts about i18n issues and no solution seems to solve my problem.

I have an app running with Django 1.3.1 and it works Fine at my

Answer 1

By default, compiled translation files (*.mo) are ignored by git. Verify that you have this exception removed from your .gitignore file.

If that is the case, remove this exception, add these files to git, commit and push to Heroku to have them available to the app in Heroku.