Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires oat-sa/extension-tao-mediamanager dev-22c277dc8ce265cb73deb272f61ae5ac45b8b35a as v99.99.99 -> satisfiable by oat-sa/extension-tao-mediamanager[dev-22c277dc8ce265cb73deb272f61ae5ac45b8b35a]. - oat-sa/extension-tao-mediamanager dev-22c277dc8ce265cb73deb272f61ae5ac45b8b35a requires oat-sa/extension-tao-test >=15.16 -> satisfiable by oat-sa/extension-tao-test[v15.16.0, v15.17.0, v15.17.1, v16.0.0, ..., v16.2.0, 9999999-dev]. - oat-sa/extension-tao-mediamanager dev-22c277dc8ce265cb73deb272f61ae5ac45b8b35a requires oat-sa/generis dev-feat/REL-1723/update-flysystem-lib as 16.0.0 -> satisfiable by oat-sa/generis[dev-feat/REL-1723/update-flysystem-lib]. - oat-sa/extension-tao-test[dev-master, v15.16.0, ..., v15.17.1, v16.0.0, ..., v16.2.0] require oat-sa/generis >=15.24 -> satisfiable by oat-sa/generis[v15.24.0, ..., v15.38.0, 9999999-dev]. - You can only install one version of a package, so only one of these can be installed: oat-sa/generis[dev-feat/REL-1723/update-flysystem-lib, dev-master, v14.0.0, ..., v14.4.0, v15.0.0, ..., v15.38.0].

Process completed with exit code 2.