MPMoviePlayerController undeclared (first use in the function) message

I dont know why I am getting this message when I click have this code

MPMoviePlayerController *mp 开发者_高级运维= [[MPMoviePlayerController alloc] iniWithContentURL: url];

Is there something, I am missing here?

Thanks

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You need to import/include the movie player:

#import <MediaPlayer/MediaPlayer.h>

Furthermore, the MediaPlayer.framework must be added to your "Frameworks" folder in the XCode project. To add the framework, right-click on "Frameworks", then select the path on your system where this framework resides. On my system it is under the following path:

/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/System/Library/MediaPlayer.framework

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Make sure you are linking to MediaPlayer.framework in your Xcode project. That's where MPMoviePlayerController comes from and if you don't link to it, the linker won't know what it is.

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MediaPlayer.framework must be added to your "Frameworks" and #import <MediaPlayer/MediaPlayer.h> in your .h file