After creating a fresh Laraver project using:
laravel new [project_name]
At first it ran, but after running it for the second time I got an error saying:
Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0
Fatal error: Unknown: Failed opening required 'D:[path]\server.php' (include_path='C:\xampp\php\PEAR') in Unknown on line 0
The problem was that the initial directory included server.php file and the second time around it was missing.
For me this was a weird interaction with Avast as it perceived the file as malicious. Check Avast's Virus chest to recover the file to avoid further issues.
Maybe this will save time for somebody.