https://github.com/MrYawe/nuitinfo2015/wiki
Lors d'un "sudo composer dump-autoload" :
[ErrorException]
file_put_contents(/home/vagrant/Code/nuitinfo2015/vendor/composer/autoload_namespaces.php):
failed to open stream: Operation not permitted
Solution : change permissions on vendor folder chmod -R 777 vendor run a php artisan serve and stop, this will create the services.json file.