Fatal error: Uncaught Error: Interface 'PharIo\Version\VersionConstraint' not found in D:\svn\blog\vendor\phar-io\version\src\constraints\AnyVersionConstraint.php:13 Stack trace: #0 {main} thrown in D:\svn\blog\vendor\phar-io\version\src\constraints\AnyVersionConstraint.php on line 13