Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires neos/redirecthandler dev-flow-9-compatibility as dev-master, found neos/redirecthandler[dev-feature/introduce-new-fields, dev-main, dev-kitsunet-patch-1, 1.0.0, 1.0.1, 1.0.x-dev, 2.0.0, 2.0.1, 2.0.x-dev, 3.0.0, ..., 3.0.x-dev, 4.0.0, ..., 4.0.x-dev, 5.0.0, ..., 5.0.x-dev, 6.0.0, 6.0.x-dev (alias of dev-main)] but it does not match the constraint. Problem 2 - Root composer.json requires neos/redirecthandler-databasestorage dev-flow-9-compatibility as dev-main, found neos/redirecthandler-databasestorage[dev-task/fix-styles, dev-main, dev-test-pipeline, dev-test-pipeline-5.0, dev-bugfix-update-status-code, dev-bugfix/check-index-before-removal, 1.0.0, ..., 1.0.x-dev, 2.0.0, 2.0.1, 2.0.2, 2.0.x-dev, 3.0.0, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 5.0.0, ..., 5.0.x-dev, 6.0.0, 6.0.1] but it does not match the constraint. Problem 3 - Root composer.json requires neos/redirecthandler-neosadapter dev-build as dev-main -> satisfiable by neos/redirecthandler-neosadapter[dev-build]. - neos/redirecthandler-neosadapter dev-build requires neos/redirecthandler ~6.0 || dev-main -> found neos/redirecthandler[dev-main, 6.0.0, 6.0.x-dev (alias of dev-main)] but it conflicts with your root composer.json require (dev-flow-9-compatibility as dev-master).

Process completed with exit code 2.

Process completed with exit code 1.