Your requirements could not be resolved to an installable set of packages. Problem 1 - simplesamlphp/simplesamlphp[2.1.0, ..., v2.1.3] require symfony/http-foundation ^6.0 -> found symfony/http-foundation[v6.0.0, ..., v6.4.8] but it conflicts with your root composer.json require (^7.1). - simplesamlphp/simplesamlphp[v2.1.4, ..., v2.1.6] require symfony/http-foundation ^6.0 <6.4 -> found symfony/http-foundation[v6.0.0, ..., v6.3.12] but it conflicts with your root composer.json require (^7.1). - simplesamlphp/simplesamlphp[v2.2.0, ..., v2.2.2] require symfony/http-foundation ^6.4 -> found symfony/http-foundation[v6.4.0, ..., v6.4.8] but it conflicts with your root composer.json require (^7.1). - Root composer.json requires simplesamlphp/simplesamlphp ^2.1 -> satisfiable by simplesamlphp/simplesamlphp[2.1.0, ..., v2.2.2].