YouTube API request failed: Invalid Channel

If you get the message "YouTube API request failed: Invalid channel", then this means that the channel id you entered is not valid.

You need to use the CHANNEL ID, and NOT the USER ID. :-)

WRONG EXAMPLE:

FitnessBlender

WRONG EXAMPLE:

https://www.youtube.com/watch?v=fcN37TxBE_s

CORRECT EXAMPLE:

https://www.youtube.com/channel/UCiP6wD_tYlYLYh3agzbByWQ

CORRECT EXAMPLE:

UCiP6wD_tYlYLYh3agzbByWQ

"FitnessBlender" above is a USER, and they can have MULTIPLE YouTube channels.