Fatal error: Uncaught Error: Class "Dotenv\Environment\AbstractVariables" not found in I:\www\frameworks\Laravel\vendor\vlucas\phpdotenv\src\Environment\DotenvVariables.php:8 Stack trace: #0 {main} thrown in I:\www\frameworks\Laravel\vendor\vlucas\phpdotenv\src\Environment\DotenvVariables.php on line 8