連接器命令退出碼1（使用-v看看調用）和未定義的符號失敗架構

Question

我有問題，我想不通爲什麼..

 
Undefined symbols for architecture x86_64: 
    "_OBJC_CLASS_$_QButtonElement", referenced from: 
     objc-class-ref in AppDelegate.o 
    "_OBJC_CLASS_$_QEntryElement", referenced from: 
     objc-class-ref in AppDelegate.o 
    "_OBJC_CLASS_$_QRootElement", referenced from: 
     objc-class-ref in AppDelegate.o 
    "_OBJC_CLASS_$_QSection", referenced from: 
     objc-class-ref in AppDelegate.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

Answer 1

我想通了，我仍然在代碼中使用QButtonElement，即使我已經刪除了類。