I am attempting to upgrade TinyMCE to version 2.1.1 from 1.1.0.
I run the update and everything appears fine, it also updates te required CMS packages to 11.5.3 and Forms. After compiling when I run the site I get this error:
I can downgrade TinyMCE to version 1.1.0 and it works fine again.
Hi, that type 'EPiServer.Editor.TinyMCE.TinyMCEPluginNonVisualAttribute' doesn't exist anymore in the TinyMCE version 2.x. Search your code for the 'TinyMCEPluginNonVisualAttribute' and remove those TinyMCE configurations and replace with the new way to configure TinyMCE.
See the Episerver documentation.