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Alex Rivera
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By using this Code AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:selectedVideoUrl]; CMTime duration = playerItem.duration; float seconds = CMTimeGetSeconds(duration); NSLog(@"duration: %.2f", seconds); Error Undefined symbols for architecture armv7: "_CMTimeGetSeconds", referenced from: -[VideoUpload imagePickerController:didFinishPickingMediaWithInfo:] in VideoUpload.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)
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