Fatal error: Uncaught Error: Class 'TYPO3\ClassAliasLoader\Test\Unit\BaseTestCase' not found in /var/www/typo3/vendor/typo3/class-alias-loader/tests/Unit/ClassAliasLoaderTest.php:20 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/typo3/class-alias-loader/tests/Unit/ClassAliasLoaderTest.php on line 20