root@gilberto:/opt/lampp# composer create-project "larevel/laravel:4.*"
    Authentication required (packagist.org):
      Username: gilberto
      Password:
Invalid credentials for 'http://packagist.org/p/provider-2013%241f4177936aa5b01cc40c89cc7c67df99205cb468c457539e92ee04dda8133dbb.json', aborting.
http://packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date


  [InvalidArgumentException]
  Could not find package larevel/laravel with version 4.*.


create-project [-s|--stability STABILITY] [--prefer-source] [--prefer-dist] [--repository REPOSITORY] [--repository-url REPOSITORY-URL] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs] [--no-install] [--ignore-platform-reqs] [--] [<package>] [<directory>] [<version>]

root@gilberto:/opt/lampp#