Discord Bot Development and Unknow Application Error code 10002

If you are here, I feel you.

The reference told you about a ClientID and you end-up copying YOUR ClientID.

As learned from this thread, the ClientID requested is something else. You need to get it from the Development Portal the ClientID of the Bot:

https://www.reddit.com/r/Discord_Bots/comments/pmcjh3/discordapierror10002_unknown_application/hcmpdhj/

Happy Bot-development!