Fatal error: Uncaught Error: Class "Symfony\Component\Translation\Tests\Loader\LocalizedTestCase" not found in C:\AppServ\www\greenhess-storage\vendor\symfony\translation\Tests\Loader\IcuDatFileLoaderTest.php:20 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\symfony\translation\Tests\Loader\IcuDatFileLoaderTest.php on line 20