Fatal error: Uncaught Error: Class 'Monolog\Handler\AbstractProcessingHandler' not found in D:\workspaces\liZiPingBack\vendor\symfony\monolog-bridge\Handler\ConsoleHandler.php:44 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\monolog-bridge\Handler\ConsoleHandler.php on line 44