Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires contao-community-alliance/events-contao-bindings ^5.0@dev, found contao-community-alliance/events-contao-bindings[dev-support/4.4.0, dev-support/4.9.0, dev-release/4.10.0, 2.11.0, 3.1.0, ..., 3.5.1, 4.4.0, ..., 4.13.1] but it does not match the constraint. Problem 2 - Root composer.json requires contao-community-alliance/dependency-container ^2.1 -> satisfiable by contao-community-alliance/dependency-container[2.1.0, 2.1.1]. - contao-community-alliance/dependency-container[2.1.0, ..., 2.1.1] require contao/core-bundle ^4.9 -> found contao/core-bundle[4.9.0, ..., 4.13.43] but it conflicts with your root composer.json require (~5.3.0).

Process completed with exit code 2.