Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires larastan/larastan ^2.0.1 -> satisfiable by larastan/larastan[v2.0.1, ..., 2.x-dev].
- Root composer.json requires laravel/framework 12.* -> satisfiable by laravel/framework[v12.0.0, ..., 12.x-dev].
- illuminate/database[v10.0.0, ..., 10.x-dev] require illuminate/support ^10.0 -> satisfiable by illuminate/support[v10.0.0, ..., 10.x-dev].
- illuminate/database[v11.0.0, ..., 11.x-dev] require illuminate/contracts ^11.0 -> satisfiable by illuminate/contracts[v11.0.0, ..., 11.x-dev].
- illuminate/database[v9.51.0, ..., 9.x-dev] require illuminate/support ^9.0 -> satisfiable by illuminate/support[v9.0.0-beta.1, ..., 9.x-dev].
- illuminate/support[v9.33.0, ..., 9.x-dev, v10.0.0, ..., v10.16.1] require nesbot/carbon ^2.62.1 -> found nesbot/carbon[2.62.1, ..., 2.x-dev] but it conflicts with your root composer.json require (^3.0).
- illuminate/support[v10.17.0, ..., 10.x-dev] require nesbot/carbon ^2.67 -> found nesbot/carbon[2.67.0, ..., 2.x-dev] but it conflicts with your root composer.json require (^3.0).
- illuminate/support[v9.0.0-beta.1, ..., v9.32.0] require nesbot/carbon ^2.53.1 -> found nesbot/carbon[2.53.1, ..., 2.x-dev] but it conflicts with your root composer.json require (^3.0).
- larastan/larastan[v2.0.1, ..., 2.3.5] require illuminate/support ^9 -> satisfiable by illuminate/support[v9.0.0-beta.1, ..., 9.x-dev].
- larastan/larastan[v2.10.0, ..., 2.x-dev] require illuminate/database ^9.52.20 || ^10.48.28 || ^11.41.3 -> satisfiable by illuminate/database[9.x-dev, v10.48.28, 10.x-dev, v11.41.3, ..., 11.x-dev].
- larastan/larastan[2.4.0, ..., v2.6.4] require illuminate/support ^9.47.0 || ^10.0.0 -> satisfiable by illuminate/support[v9.47.0, ..., 9.x-dev, v10.0.0, ..., 10.x-dev].
- larastan/larastan[v2.6.5, ..., v2.7.0] require illuminate/support ^9.52.16 || ^10.28.0 -> satisfiable by illuminate/support[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev].
- larastan/larastan[v2.8.0, ..., v2.9.8] require illuminate/database ^9.52.16 || ^10.28.0 || ^11.0 -> satisfiable by illuminate/database[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev].
- larastan/larastan[v2.9.9, ..., v2.9.14] require illuminate/database ^9.52.16 || ^10.28.0 || ^11.16 -> satisfiable by illuminate/database[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev, v11.16.0, ..., 11.x-dev].
- Conclusion: don't install illuminate/contracts v11.0.0 (conflict analysis result)
- Conclusion: don't install illuminate/contracts v11.16.0 (conflict analysis result)
- Conclusion: don't install illuminate/contracts v11.41.3 (conflict analysis result)