Fatal error: Uncaught Error: Class "Matthias\SymfonyDependencyInjectionTest\PhpUnit\AbstractExtensionTestCase" not found in /home/flighto/e-commerce/vendor/sylius/theme-bundle/tests/DependencyInjection/SyliusThemeExtensionTest.php:23 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius/theme-bundle/tests/DependencyInjection/SyliusThemeExtensionTest.php on line 23