Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\Landaweb\webs\landaweb\backend\vendor\sendinblue\api-v3-sdk\test\Api\FoldersApiTest.php:43 Stack trace: #0 {main} thrown in C:\Landaweb\webs\landaweb\backend\vendor\sendinblue\api-v3-sdk\test\Api\FoldersApiTest.php on line 43