我不小心删除了我的主视图控制器。我把它从垃圾桶里拿出来放回xcode,但现在我仍然得到3个不同的错误
"_OBJC_CLASS_$_ViewController", referenced from:
_OBJC_CLASS_$_menuViewController in menuViewController.o
"_OBJC_METACLASS_$_ViewController", referenced from:
_OBJC_METACLASS_$_menuViewController in menuViewController.o
error: linker command failed with exit code 1 (use -v to see invocation)
可能值得注意的是 menuViewController 是主 VC 的后续 VC