In the develop branch it fails on ofEvents...
ofxTwBar.cpp:76:25: error: request for member ‘windowResized’ in ‘ofEvents’, which is of non-class type ‘ofCoreEvents&()’
changing lines like ofAddListener(ofEvents.windowResized, this, &ofxTwBar::resize);
to
ofAddListener(ofEvents().windowResized, this, &ofxTwBar::resize);
fixes it... AFAICT
Also I tested your addon with AntTWB 1.14 and it works fine from what I've found...