TubeMate Android users are reporting "Unable to Download Videos on TubeMate" errors
Why TubeMate YouTube Downloader doesn't let me download videos
What is the solution if the TubeMate video downloader does not install? - Quora
General Problems. Please install the latest version at http://tubemate.net YouTube changes frequently. Some of these changes require changes of TubeMate. So, you need to keep the latest version of TubeMate. Please wait the release of fixed version I ...