Fatal error: Uncaught Error: Class "Symfony\Component\Console\Tests\Helper\AbstractQuestionHelperTest" not found in C:\mywamp\sites\allsite\calcomposer\vendor\symfony\console\Tests\Helper\QuestionHelperTest.php:28 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\symfony\console\Tests\Helper\QuestionHelperTest.php on line 28