PHP Fatal error: Uncaught Error: Class "Composer\Autoload\ComposerStaticInit166

got this error this morning , when i ran php artisan serve , how can i fix it

$ php artisan serve
PHP Fatal error:  Uncaught Error: Class "Composer\Autoload\ComposerStaticInit166
169bb16b1c4401ac87e73b786c608" not found in C:\Users\.\Desktop\tribe forum\
tribe\vendor\composer\autoload_real.php:35
Stack trace:
#0 C:\Users\..\Desktop\tribe forum\tribe\vendor\autoload.php(7): ComposerAut
oloaderInit166169bb16b1c4401ac87e73b786c608::getLoader()
#1 C:\Users\ADEALA\Desktop\tribe forum\tribe\artisan(18): require('C:\Users\AD
EALA...')