If you have received the following error when installing the editor; it is possible that your Joomla FTP library has not been configured correctly.  The simplest solution is to switch it off and install the editor again via Joomla’s extension manager.

To do this, you will need to log into the administration area which ‘Super Administrator’ privileges.

On the top menu go to > 'Site' > 'Global Configuration' and then select the ‘Server’ tab. Scroll down to ‘FTP Settings’ and select 'NO' next to 'Enable FTP', and click on 'Save' or Apply. Then install the editor via the Extension Manager.

Please see: Installing and Upgrading for more help..