Fatal error: Uncaught Error: Class "Hamcrest\AbstractMatcherTest" not found in /home/rwebserver/public_html/operations/vendor/hamcrest/hamcrest-php/tests/Hamcrest/Core/HasToStringTest.php:33 Stack trace: #0 {main} thrown in /home/rwebserver/public_html/operations/vendor/hamcrest/hamcrest-php/tests/Hamcrest/Core/HasToStringTest.php on line 33