Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\electronica\vendor\psr\log\Psr\Log\Test\LoggerInterfaceTest.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\psr\log\Psr\Log\Test\LoggerInterfaceTest.php on line 14