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How to play "JWBestPracticeApp" this demo app
https://github.com/jwplayer/jwplayer-ios-bestPracticeApps
when i open The app "JWBestPracticeApp" it's give error diff: /../Podfile.lock: No such file or directory
diff: /Manifest.lock: No such file or directory
error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.