Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires mossadal/math-parser ^2.0, found mossadal/math-parser[dev-master, dev-develop, v1.0, ..., v1.3.16] but it does not match the constraint. Problem 2 - Root composer.json requires spatie/laravel-pdf ^2.0 -> satisfiable by spatie/laravel-pdf[2.0.0, ..., v2.x-dev]. - spatie/laravel-pdf[2.0.0, ..., v2.x-dev] require illuminate/contracts ^11.0|^12.0 -> found illuminate/contracts[v11.0.0, ..., 11.x-dev, v12.0.0, ..., 12.x-dev] but it conflicts with your root composer.json require (^9.0|^10.0).