I got fatal error while running laravel project.

Hai, I 'm new to laravel framework. I have setup composer in kali linux. I have got an error,while running project.

Warning: require(/opt/lampp/htdocs/myapp/public/../vendor/autoload.php): failed to open stream: No such file or directory in /opt/lampp/htdocs/myapp/public/index.php on line 24

Fatal error: require(): Failed opening required '/opt/lampp/htdocs/myapp/public/../vendor/autoload.php' (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/myapp/public/index.php on line 24