Uncaught TypeError: Cannot read property 'restIOHandler' of undefined

[smansj]

Getting this error, What am I doing wrong?

This issue was logged by: coops-connector --> plugin.js

on this line:
this._ioHandler = editor.config.coops.restIOHandler||new DefaultIOHandler(editor);

[anttileppa]

You probably haven't defined "coops" on CKEditor config.

This should of course be null-checked but you will need to define at least a serverUrl directive so it wouldn't work without the config anyway. (See demo for example https://github.com/foyt/coops-demo/blob/master/public/editdoc.js)