Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires webonyx/graphql-php ^15.6.1, found webonyx/graphql-php[dev-lazy-root-type-callable-null, dev-optional-root-query-operation-type, dev-validate-default-values-match-argument-type, dev-respect-warning-settings-before-custom-handler, dev-const-value-node, dev-update-kitchen-sink, dev-renovate/react-promise-3.x, dev-renovate/amphp-http-server-3.x, dev-nodelist-array-access, dev-renovate/amphp-amp-3.x, dev-simplify-blog-example-type-registry, dev-master, dev-parse-operation-params, v0.1, ..., 0.13.x-dev, v14.0.0, ..., 14.x-dev, v15.0.0-alpha.1, ..., v15.6.0] but it does not match the constraint. Problem 2 - laragraph/utils[v1.5.0, ..., v1.6.0, v2.0.0, ..., v2.0.2] require webonyx/graphql-php ^0.13.2 || ^14 || ^15 -> found webonyx/graphql-php[v0.13.2, ..., 0.13.x-dev, v14.0.0, ..., 14.x-dev, v15.0.0-alpha.1, ..., v15.6.0] but it conflicts with your root composer.json require (^15.6.1). - Root composer.json requires laragraph/utils ^1.5 || ^2 -> satisfiable by laragraph/utils[v1.5.0, v1.6.0, v2.0.0, v2.0.1, v2.0.2].