Eager macro-expansion failure: (file-missing "Opening input file" "No such file or directory"

[danielkrajnik]

Trying it on doom emacs, GNU Emacs 29.1, but running systemd-mode in a buffer gives an error:

File mode specification error: (error Eager macro-expansion failure: (file-missing "Opening input file" "No such file or directory" "/home/user/.config/emacs/.local/straight/build-29.1/systemd-mode/unit-directives.txt"))

[simonsjw]

Same on vanilla emacs (different loadpath due to package management differences).

Fix was to copy in the unit-directives.txt nspawn-directives.txt and network-directives.txt files to that location.