Buddypress: Language not changing

I'm getting crazy because everything seems to be fine, but impossible to get a solution.

I want to translate my buddypress to Spanish.

Seems like I have everything ok:

My language files:

languiage files

My wp-config

define('WPLANG', 'es_ES');

My config on dashboard: Setted to Spanish

My wordpress version : 4.1.

My wordpress is translated ok once I set the language on the dashboard, anyway the buddypress language does not change.

Any Idea about what could be wrong here??

Solution

You need to create and upload the buddypress-es_ES.mo file. The .po files are used to create the .mo file. You don't need to upload the .po files.