Fatal error: Uncaught Error: Interface "Symfony\Component\Debug\Tests\Fixtures\DeprecatedInterface" not found in C:\mywamp\sites\allsite\calcomposer\vendor\symfony\debug\Tests\Fixtures\NonDeprecatedInterface.php:5 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\symfony\debug\Tests\Fixtures\NonDeprecatedInterface.php on line 5