Warning: require_once(C:\Apache24\htdocs\vendor/composer/autoload_real.php): Failed to open stream: No such file or directory in C:\Apache24\htdocs\vendor\autoload.php on line 23

Fatal error: Uncaught Error: Failed opening required 'C:\Apache24\htdocs\vendor/composer/autoload_real.php' (include_path='.;C:\php\pear') in C:\Apache24\htdocs\vendor\autoload.php:23 Stack trace: #0 C:\Apache24\htdocs\app\autoload.php(51): include() #1 C:\Apache24\htdocs\app\bootstrap.php(43): require_once('C:\\Apache24\\htd...') #2 C:\Apache24\htdocs\pub\index.php(12): require('C:\\Apache24\\htd...') #3 {main} thrown in C:\Apache24\htdocs\vendor\autoload.php on line 23