学科:IOS/KB/Uncaught exception

this class is not key value coding-compliant for the key

编辑

示例:

 *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<MyClass 0x1ddc5400> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key MyTitle.'

可能原因:

  • IBOutlet没有正确设置,没连,或者连的位置不对
  • MyClass的实现部分没synthesize MyTitle变量