Fatal error: Uncaught Error: Class "Symfony\Component\Process\Exception\RuntimeException" not found in E:\www\catalog_frey\qgmvc\v1.0\composer\vendor\symfony\process\Exception\ProcessSignaledException.php:21 Stack trace: #0 {main} thrown in E:\www\catalog_frey\qgmvc\v1.0\composer\vendor\symfony\process\Exception\ProcessSignaledException.php on line 21