Strict Standards: Static function Symfony\Component\Mailer\Test\IncompleteDsnTestTrait::incompleteDsnProvider() should not be abstract in C:\Apache24\htdocs\drupal\vendor\symfony\mailer\Test\IncompleteDsnTestTrait.php on line 23

Parse error: syntax error, unexpected ':', expecting ';' or '{' in C:\Apache24\htdocs\drupal\vendor\symfony\mailer\Test\IncompleteDsnTestTrait.php on line 23