Fatal error: Uncaught Error: Interface "Google\Cloud\Core\LongRunning\LongRunningConnectionInterface" not found in C:\xampp\htdocs\API\vendor\google\cloud\Spanner\src\Connection\LongRunningConnection.php:28 Stack trace: #0 {main} thrown in C:\xampp\htdocs\API\vendor\google\cloud\Spanner\src\Connection\LongRunningConnection.php on line 28