This is explained by Henrik in these two issue comments:
https://github.com/doomemacs/doomemacs/issues/7368#issuecomment-1713109316
https://github.com/doomemacs/doomemacs/issues/7379#issuecomment-1721756617
Basically do
M-x nerd-icons-install-fontsSure fire way: Go vanilla!
“Hey, can I get some help using this thing?”
“Yeah sure. Simple. Don’t use that thing.”
Run “Doom doctor” in the terminal, it wil tell you how to fix this error and also if you miss some other packages.
‘nerd-icons-install-fonts’ ?
thank you!
M-x all-the-icons-install-fontsDoom switched to Nerd icons recently, it’s
nerd-icons-install-fontsnow.
/r/doomemacs
Hello! I was actually stuck on this for a while but turns out what worked for me wasn’t all-the-icons (frustratingly), it was nerd font icons! So run nerd-icons-install-fonts :)