Hi Greg, I don't use use-package, so I just state some observations which seem relevant.
>>>>> Greg Bognar via General discussion about AUCTeX <auctex@gnu.org> writes: > When I try to change the mode of the file by M-x LaTeX-mode, I get an error: > Cannot open load file: No such file or directory, tex-buf That strongly suggests that there remains older version of AUCTeX. In recent commit, tex-buf.el was merged into tex.el. I guess that older one is conflicting with newer one. > M-x describe-mode tells me: > Fundamental mode defined in `tex-mode.el': That's very strange. tex-mode.el actually has no definition for Fundamental mode. Perhaps deleting AUCTeX once and installing again might help. Regards, Ikumi Keita #StandWithUkraine #StopWarInUkraine