$ php ../composer.phar install
Installing dependencies from lock file
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for jms/di-extra-bundle == 1.1.9999999.9999999-dev -> satisfiable by jms/di-extra-bundle 1.1.x-dev.
    - Can only install one of: jms/di-extra-bundle dev-master, jms/di-extra-bundle 1.1.x-dev.
    - Installation request for jms/di-extra-bundle == 9999999-dev -> satisfiable by jms/di-extra-bundle dev-master.