I am working on a Plugin for Wordpress and I'm not able to get the Internationalization working.

Here is the GitHub Link: https://github.com/dev-nm/WP-StudioLink-Integration

I used wppb.me as a Boilerplate and titan framework as a Admin Panel Framework. I created the pot, po and mo with poedit + Loco Translate (Cause I only have the free versio of poedit).

The following is happening: In the Plugins Menue the translated short description is shown. In my own Menue none of the Strings is translated.

Structure for Translation is the following:

  • studio-link-integration.php => new Studio_Link_Integration ( /includes/class-studio-link-integration.php )
  • __contruct => set_locale();

    private function set_locale() {
    $plugin_i18n = new Studio_Link_Integration_i18n();
    $plugin_i18n->set_domain( 'studio-link-integration' );
    $this->loader->add_action( 'plugins_loaded', $plugin_i18n, 'load_plugin_textdomain' );
  • in class Studio_Link_Integration_i18n

    public function load_plugin_textdomain() {
        dirname( plugin_basename( __FILE__ ) ) . '/languages'

Language Files are in /languages/ and are named studio-link-integration-de_DE.

translation is done with __( 'Text to Translate', 'studio-link-integration' ).

I really dont know, why it wont work. Can someone look at my Files and help me? Am I forgetting some new specifications for translating? I read the whole Codex about Localization and Internationalisation but havent found anything new out that helped me.

Thanks :)

  • Please give an example of an actual string that doesn't work. Your German file contains a lot of translations in English including your main menu items.
    – Tim
    Jan 28, 2019 at 9:52
  • Well, none of the Strings works. The only Text that apperas in German is the short description, but it gets loaded in another way I guess, cause it is translated even before activationg the Plugin. EDIT: I just read the Translation File. The short description is not translated there. Jan 28, 2019 at 9:55
  • EDIT: Nevermind the EDIT of the Commentabove. I just fergot to update the Files in the GitHub. Just uploaded it now Jan 28, 2019 at 10:04
  • These Translations work: LINK Jan 28, 2019 at 10:11

1 Answer 1


Your error is here

The path to your bundled translations resolve to a languages folder inside the includes folder, which is one level down from where it actually is.

Try it with an extra dirname and you will target it correctly:

dirname( dirname( plugin_basename( __FILE__ ) ) ) . '/languages/'

Or to be a bit tidier:

plugin_basename( __DIR__.'/../languages' )
  • Tanks a lot! But now i see there is another Problem: the Titan Framework, I included into the Plugin does not load its localization. Do you have an Idea how to include it without editing the Source of the Framework? Jan 28, 2019 at 15:15
  • It is located in admin/titan-framework/languages Jan 28, 2019 at 15:16
  • You can filter on this. See WP docs for load_textdomain_mofile
    – Tim
    Jan 28, 2019 at 15:33
  • I'm curious why you unaccepted my answer after fixing the bug.
    – Tim
    Feb 11, 2019 at 10:52

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