學科:IOS/KB/Uncaught exception
< Subject:IOS | KB
this class is not key value coding-compliant for the key
編輯示例：
*** 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沒有正確設置，沒連，或者連的位置不對
- MyClass的實現部分沒synthesize MyTitle變量