https://support.google.com/youtube/answer/6098135?p=yt_devicesupport&hl=sv&rd=1
https://support.google.com/youtube/answer/6098135?p=yt_devicesupport&hl=sv&rd=1
Hello,
Did you enable YouTube Data API from APIs section in Developer Console?
And have you lock on this?: https://developers.google.com/youtube/v3/getting-started#intro