Hi all, i also get the same error but i already find out how to fix it. I think you don’t completed the upload. You folder must have a path like this “wp-includes/js/tinymce/themes/advanced”. In advanced folder you’ll find out a file named “editor_template.js”
You can replace that file with this one
https://trac.www.ads-software.com/browser/trunk/wp-includes/js/tinymce/themes/advanced/editor_template.js?rev=3163&format=txt
Upload it and try it !
Have fun ??
