问题
A button crashes on tap (watch simulator and real device) :
Thread 1: EXC_BAD_ACCESS (code=1, address=0x0) inside the framework/function libswiftCore.dylib swift_getObjectType
The button has a “Sent Action” defined in the storyboard, but no segue, other buttons work well, adding a segue to the button seems to resolve this issue. This occurs on Xcode 9.3 ( did not occur on previous versions)
Any ideas? I want to understand whats causing the crash - hate leaving stuff unresolved.
来源：https://stackoverflow.com/questions/49727620/xcode-9-3-watchkit-crash-on-wkinterfacebutton-tap