(wrong-type-argument stringp nil) when running projectile in a newly created project

[Toctave]

Expected behavior

When I run e.g. projectile-compile-project in a repository I have just created, it should ask for a compile command and run it. Or maybe it could ask me to define a project directory if it's confused.

Actual behavior

Instead, I get this error and backtrace :

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  find-file-name-handler(nil file-remote-p)
  file-remote-p(nil)
  projectile-project-root(nil)
  projectile-acquire-root()
  projectile-read-command("Compile command: " nil)
  projectile-maybe-read-command(nil nil "Compile command: ")
  projectile--run-project-cmd(nil #<hash-table equal 1/65 0x180bb50cde1b> :show-prompt nil :prompt-prefix "Compile command: " :save-buffers t :use-comint-mode nil)
  projectile-compile-project(nil)
  funcall-interactively(projectile-compile-project nil)
  call-interactively(projectile-compile-project nil nil)
  command-execute(projectile-compile-project)

If I exit emacs and run it again, then it works correctly.

Steps to reproduce the problem

1. Open emacs
2. Create a new folder and a git repository in it
3. Navigate to that folder
4. Run a projectile command, such as projectile-compile-project

Environment & Version information

Projectile version information

Include here the version string displayed by M-x projectile-version. Here's an example:

Projectile 20231013.1509

Emacs version

Emacs 29.1

Operating system

Ubuntu 22.04

[github-actions]

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[bbatsov]

Hmm, I puzzled how this can happen, as the file-remote-p is only invoked on the current directory in projectile-project-root:

;; if the file isn't local, and we're not connected, don't try to
       ;; find a root now now, but don't cache failure, as we might
       ;; re-connect.  The `is-local' and `is-connected' variables are
       ;; used to fix the behavior where Emacs hangs because of
       ;; Projectile when you open a file over TRAMP. It basically
       ;; prevents Projectile from trying to find information about
       ;; files for which it's not possible to get that information
       ;; right now.
       (let ((is-local (not (file-remote-p dir)))      ;; `true' if the file is local
             (is-connected (file-remote-p dir nil t))) ;; `true' if the file is remote AND we are connected to the remote
         (unless (or is-local is-connected)
           'none))

It would help if you place a brakepoint in projectile-project-root and step through it to see how come the directory is nil.