Unable to create temporary file when uploading a file in a POST route

[koe01sense]

How do I fix a warning wherein when I tried to upload a file, PHP or Laravel says Warning: File upload error - unable to create a temporary file in Unknown on line 0?

This is the configuration currently set on my php.ini

; Directory where the temporary files should be placed.
; Defaults to the system default (see sys_get_temp_dir)
;sys_temp_dir = "/tmp"

running the command above returns my temp directory

$ php artisan tinker
Psy Shell v0.12.4 (PHP 8.3.12 — cli) by Justin Hileman
> sys_get_temp_dir();
= "C:\Users\FULLSC~1\AppData\Local\Temp"

and creating tmpfile should return a boolean flag if the temp directory is not writeable but the result is opposite.

> $tempfile = tmpfile();
= stream resource #803

Here's the result of hitting the endpoint through postman.

As for the controller method code, there's no particular usage yet for the uploaded file due to this warning

    public function uploadLogo(Workspace $workspace, Request $request) {
        // $request->validate([
        //     'logo' => ['file']
        // ]);

        $file = $request->file('logo');

        dd($file);

        return new WorkspaceResource($workspace);
    }

[ejsinfuego]

is your file upload enabled and also the file limit is enough in your php.ini config?

[koe01sense]

yes and yes. The file I uploaded is a small file size image around 1kb.

[ejsinfuego]

what's your current directory on that part of php.ini ? im thinking, there are two possible error. incorrect directory or authorization (write access)

[koe01sense]

I am using Laravel Herd and tried updating the said config using C:\Temp directory and now it works as expected. I'm confused with how it is unable to create a temporary file when the default temp directory sys_get_temp_dir() for upload_tmp_dir config is a writeable directory.

[ejsinfuego]

I think it does, it's just that, you have incorrect directory.