Fatal error: Could not check compatibility between PHPUnit\TextUI\Configuration\TestFileCollection::getIterator(): PHPUnit\TextUI\Configuration\TestFileCollectionIterator and IteratorAggregate::getIterator(): Traversable, because class PHPUnit\TextUI\Configuration\TestFileCollectionIterator is not available in /home/aplikasiposinfo/public_html/demo2.fixmate.id/vendor/phpunit/phpunit/src/TextUI/Configuration/Value/TestFileCollection.php on line 56