Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires helsingborg-stad/broken-link-detector 4.2.2 -> satisfiable by helsingborg-stad/broken-link-detector[4.2.2]. - Root composer.json requires helsingborg-stad/modularity 6.52.0 -> satisfiable by helsingborg-stad/modularity[6.52.0]. - helsingborg-stad/broken-link-detector 4.2.2 requires helsingborg-stad/wpservice ^2.0 -> satisfiable by helsingborg-stad/wpservice[2.0.0, ..., 2.0.8]. - helsingborg-stad/modularity 6.52.0 requires helsingborg-stad/wpservice dev-main -> satisfiable by helsingborg-stad/wpservice[dev-main]. - You can only install one version of a package, so only one of these can be installed: helsingborg-stad/wpservice[dev-main, 2.0.0, ..., 2.0.8].