objective-c IOS开发之——Undefined symbol:_OBJC_CLASS(Ios开发) sgq5136 发表于2024-04-21 浏览9484 评论0 一 现象 导入MBProgressHUD显示信息时,出现如下异常现象 Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_MBProgressHUD", referenced from: objc-class-ref in ViewController.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command f