学科:IOS/KB/Uncaught exception
< Subject:IOS | KB
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