Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\vendor\doctrine\lexer\tests\Doctrine\Common\Lexer\AbstractLexerTest.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\doctrine\lexer\tests\Doctrine\Common\Lexer\AbstractLexerTest.php on line 5