"unknown type name 'ofxxmlsettings'" when compiling ofxui

I keep getting the following errors when compiling any of the ofxUI examples. I’ve just downloaded 8.2.

Any suggestions?

Thanks

you need to add the ofxXMLSettings addon to your project

It have added it using the OFplugin, xcode plugin. So the only two add ons in this project are ofxxmlsettings and ofxUI.