Fatal error: Uncaught Error: Class "Composer\Installer\LibraryInstaller" not found in C:\Apache24\htdocs\cw\vendor\composer\installers\src\Composer\Installers\Installer.php:14 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cw\vendor\composer\installers\src\Composer\Installers\Installer.php on line 14