在使用webiview加载URL地址时,出现了以下错误: *** WebKit discarded an uncaught exception in the webView:didFinishLoadForFrame: delegate: <NSUnknownKeyException> [<xxxxxx 0x147d53ad0> valueForUndefinedKey:]: this cl

在写测试程序时，出现下面这个exception， 2011-11-02 15:33:37.569 TestAudioPlayer[254:707] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<TestAudioPlayerViewController 0x198620