Fatal error: Uncaught Error: Class "Composer\Installers\Installer" not found in C:\Apache24\htdocs\cms_upgrade\vendor\drupal\console-extend-plugin\src\Installer.php:9
Stack trace:
#0 {main}
thrown in C:\Apache24\htdocs\cms_upgrade\vendor\drupal\console-extend-plugin\src\Installer.php on line 9