Fatal error: Uncaught Error: Interface 'Monolog\Formatter\FormatterInterface' not found in D:\workspaces\liZiPingBack\vendor\symfony\monolog-bridge\Formatter\VarDumperFormatter.php:20 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\monolog-bridge\Formatter\VarDumperFormatter.php on line 20