Reproduces steps:
I have the following directory
```
\---myproject
| .project
|
+---subproject1
| \---.git
| | Makefile
|
\---subproject2
\---.git
| Makefile
```
1. Open Emacs -Q
2. M-x eval-expression `(setq debug-on-error t)`
3. M-x eval-expression `(setq project-vc-extra-root-markers '(".project"))`
4. Open the .project file in Emacs
5.
M-x eval-expression `(project-current)`
Result: `(vc nil "e:/work/myproject/")` OK
6. M-x eval-expression `(project-files (project-current))`
Result: Debugger entered--Lisp error: (error "File listing failed: FIND: Parameter format not co...")
error("File listing failed: %s" "FIND: Parameter format not correct\n")
The root cause is that `project--files-in-directory` in project.el is using `find-program` ("find") which does not exist on Windows.
Is it possible to use more portable code? For example, `directory-files-recursively`? Otherwise NTEmacs users will have to install CYGWIN or MSYS2.
P.s.
I have used Projectile before, which allows you to place a .projectile file in `myproject` and everything was OK
on Windows. Also if I focus on a git folder e.g. `subproject1` in the example above, the
`project-files` also works well.
Emacs 29.3 on Windows 10.
Thanks.
Best Regards,
Siyuan Chen