Can't load video

[bigbangvn]

I just copy a mp4 video to Documents directory and open, but i get the alert "Failed to load video!",
The video's thumbnail was loaded ok.

[imoreapps]

Please look into the method

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    [AVPLicense register:@"XXXX......XXXX"];
    return YES;
}