Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/daruri/public_html/ai/livewire-starter-kit/vendor/lukascivil/treewalker/tests/TreeWalkerTest.php:4 Stack trace: #0 {main} thrown in /home/daruri/public_html/ai/livewire-starter-kit/vendor/lukascivil/treewalker/tests/TreeWalkerTest.php on line 4