Undefined symbols for architecture arm64:
"_OBJC_CLASS_$_ARSession", referenced from:
objc-class-ref in easyar(easyar-arm64-master.o)
"_OBJC_CLASS_$_ARWorldTrackingConfiguration", referenced from:
objc-class-ref in easyar(easyar-arm64-master.o)
ld: symbol(s) not found for architecture arm64