Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES' 

是因为UIImagePickerController是竖屏的，而ipad是横屏的，在ios6.0的横竖屏的问题比较敏感，所以在会挂的。 
解决办法： 
在supported Interface Orientations选中landscapeLeft和LandscapeRight（不选中的话在iOS5.0下第一次运行会竖屏） 
在appdelegate添加 

#if __IPAD_OS_VERSION_MAX_ALLOWED >= __IPAD_6_0

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window

{

    return UIInterfaceOrientationMaskLandscape;

}

#endif

在该viewController和上一层的viewController中添加 

#pragma mark - Orientation

#pragma mark ios6以下

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

    return UIInterfaceOrientationIsLandscape(toInterfaceOrientation);

}

#pragma mark ios6 是否支持转屏

-(BOOL)shouldAutorotate

{

    return YES;

}

#pragma mark  支持的方向

-(NSUInteger)supportedInterfaceOrientations

{

    return UIInterfaceOrientationMaskLandscape;

}

#pragma mark 默认支持的朝向

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation

{

    return UIInterfaceOrientationLandscapeRight;

}

第二种方法：

写一个类继承 UIImagePickerController 在里面添加支持横屏的方法，也可以解决。