Can you please tell me about this warning?
<p>I'm getting this exception in</p>

<pre><code>[self.navigationcontroller PopViewControllerAnimated:YES];
</code></pre>

<pre>
2010-06-21 19:12:46.585 IChitMe[31250:207] *** -[NSKeyValueIvarSetter addSubview:]: unrecognized selector sent to instance 0x377010
2010-06-21 19:12:46.593 IChitMe[31250:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSKeyValueIvarSetter addSubview:]: unrecognized selector sent to instance 0x377010'
2010-06-21 19:12:46.604 IChitMe[31250:207] Stack: (
    864992541,
    859229716,
    864996349,
    864492313,
    864454720,
    805091,
    795933,
    839415824,
    839414704,
    839684408,
    839683992,
    1282379,
    864749711,
    839231364,
    839683900,
    864749711,
    839231364,
    839231212,
    839231156,
    839230220,
    839233420,
    839227648,
    839225236,
    839206800,
    839205012,
    875886564,
    864740651,
    864738335,
    875880904,
    838872112,
    838865456,
    10345,
    10208
)
terminate called after throwing an instance of 'NSException'
Program received signal:  “SIGABRT”.
(gdb) 
</pre>
