I have uploaded the file (nl_Nl.po) into the theme file languages.
Because I use a WordPress in Dutch, wp-config.php has already been changed to nl_NL.
But the translation are not published.
Do you have any advice?
Should I upload a MO file?
* WordPress Localized Language, defaults to English.
* Change this to localize WordPress. A corresponding MO file for the chosen
* language must be installed to wp-content/languages. For example, install
* de_DE.mo to wp-content/languages and set WPLANG to ‘de_DE’ to enable German
* language support.