Video Player Does Not Play The Video Every Time

I am working on an application in which I have to use Android Video Player. I am giving this Player a URI, that sometime runs and some time does not. URI is generated at run time a

Solution 1:

form log -1004 means: public static final int MEDIA_ERROR_IO

for me, this works always:

    Uri video = Uri.parse(url);
    mediaController = new MediaController(this);
    mediaController.setAnchorView(videoView);
    videoView.requestFocus();
    videoView.setMediaController(mediaController);
    videoView.setVideoURI(video);

    videoView.setOnPreparedListener(new OnPreparedListener()
    {

        @Override
        public void onPrepared(MediaPlayer arg0)
        {
            videoView.start();
        }
    });