Leads to a nasty composer fail...
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Conclusion: don't install symfony/symfony 2.3.x-dev
- Conclusion: don't install symfony/symfony v2.3.1
- Conclusion: don't install symfony/symfony v2.3.0
- Conclusion: don't install symfony/symfony v2.3.0-RC1
- Conclusion: don't install symfony/symfony v2.3.0-BETA2
- sonata-project/admin-bundle 2.2.0 requires symfony/twig-bridge >=2.2,<2.3-dev -> satisfiable by symfony/symfony[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2], symfony/twig-bridge[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2].
- sonata-project/admin-bundle 2.2.1 requires symfony/twig-bridge >=2.2,<2.3-dev -> satisfiable by symfony/symfony[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2], symfony/twig-bridge[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2].
- sonata-project/admin-bundle 2.2.2 requires symfony/twig-bridge >=2.2,<2.3-dev -> satisfiable by symfony/symfony[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2], symfony/twig-bridge[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2].
- sonata-project/admin-bundle 2.2.x-dev requires symfony/validator >=2.2,<2.3-dev -> satisfiable by symfony/symfony[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2], symfony/validator[2.2.x-dev, v2.2.0, v2.2.1, v2.2.2].
- Can only install one of: symfony/symfony[v2.3.0-BETA1, 2.2.x-dev].
- Can only install one of: symfony/symfony[v2.3.0-BETA1, v2.2.0].
- Can only install one of: symfony/symfony[v2.3.0-BETA1, v2.2.1].
- Can only install one of: symfony/symfony[v2.3.0-BETA1, v2.2.2].
- Can only install one of: symfony/symfony[v2.3.0-BETA1, 2.2.x-dev].
- don't install symfony/validator 2.2.x-dev|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/validator v2.2.0|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/validator v2.2.1|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/validator v2.2.2|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/twig-bridge 2.2.x-dev|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/twig-bridge v2.2.0|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/twig-bridge v2.2.1|don't install symfony/symfony v2.3.0-BETA1
- don't install symfony/twig-bridge v2.2.2|don't install symfony/symfony v2.3.0-BETA1
- Installation request for symfony/symfony 2.3.* -> satisfiable by symfony/symfony[2.3.x-dev, v2.3.0, v2.3.0-BETA1, v2.3.0-BETA2, v2.3.0-RC1, v2.3.1].
- sonata-project/doctrine-mongodb-admin-bundle dev-master requires sonata-project/admin-bundle 2.2.*@dev -> satisfiable by sonata-project/admin-bundle[2.2.x-dev, 2.2.0, 2.2.1, 2.2.2].
- sonata-project/doctrine-mongodb-admin-bundle dev-master requires sonata-project/admin-bundle 2.2.*@dev -> satisfiable by sonata-project/admin-bundle[2.2.x-dev, 2.2.0, 2.2.1, 2.2.2].
- Conclusion: don't install sonata-project/admin-bundle 2.2.x-dev|keep sonata-project/admin-bundle 2.2.x-dev|install sonata-project/admin-bundle 2.2.0|install sonata-project/admin-bundle 2.2.1|install sonata-project/admin-bundle 2.2.2
- Installation request for sonata-project/doctrine-mongodb-admin-bundle master -> satisfiable by sonata-project/doctrine-mongodb-admin-bundle[dev-master].