OliviaaF

It honestly could be. I'm reinstalling to be safe. Edit: Got rid of B9, and installed it fresh, which works.

Deleted and tried again. Same thing. I'm gonna reinstall KSP, to make sure it's up to date

The exact one. The message.

I tried that, but it's telling me to use 1.0.4

Not sure what I'm doing wrong, but when I add the folder to gamedata and boot the game, it tells me I have an unsupported version of the mod. I've tried multiple downloads.