Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\gen\ms_core\DiscordApi\vendor\ringcentral\psr7\tests\ServerRequestTest.php:5 Stack trace: #0 {main} thrown in C:\gen\ms_core\DiscordApi\vendor\ringcentral\psr7\tests\ServerRequestTest.php on line 5