- friendsofsymfony/elastica-bundle dev-foobar-master requires ruflin/elastica 2.* -> satisfiable by ruflin/elastica[2.0.0, 2.0.1] from package repo (defining 2 packages) but ruflin/elastica[dev-outdated-branch] from package repo (defining 1 package) has higher repository priority. The packages with higher priority do not match your constraint and are therefore not installable. See https://getcomposer.org/repoprio for details and assistance.