I added MetalPerformanceShaders.framework to my "Linked Frameworks and Libraries" list, but I get this build error:
Undefined symbols for architecture arm64:
"_OBJC_CLASS_$_MPSImageScale", referenced from:
objc-class-ref in DocumentViewController.o
ld: symbol(s) not found for architecture arm64
I'm using Swift and building in Xcode 9.4.1 for iOS 11. What am I missing?
Rob