The FTB Forum is now read-only, and is here as an archive.
To participate in our community discussions, please join our Discord! https://ftb.team/discord
I had the exact same issue! What you need to do is go into control panel and go into uninstall program and uninstall the development kit and only keep the java x64 bit version 8 or 11. Otherwise the issue will continue to repeat, I just fixed it and had the same error at the same time as you.
