issue with defaultLanguage "fr"

[MrSef217]

Hello ,

when i use @ckeditor('template' , ['uiColor' => '#f7f7f7' , 'defaultLanguage' => 'fr'])
i get the following error : Uncaught TypeError: Cannot set property 'dir' of undefined.
i think the error is because it's missing french language file.

is there a way to add the files languages ?

Thank you.