PS C:\Users\webr0\md5> composer require laravel/jetstream --ignore-platform-reqs
Using version ^2.1 for laravel/jetstream./composer.json has been updatedRunning composer update laravel/jetstreamLoading composer repositories with package informationUpdating dependenciesYour requirements could not be resolved to an installable set of packages.
 Problem 1    
- laravel/jetstream[v2.1.0, ..., 2.x-dev] require illuminate/support ^8.0 -> found illuminate/support[v8.0.0, ..., 8.x-dev] but these were not loaded, likely because it conflicts with another require.   
 - Root composer.json requires laravel/jetstream ^2.1 -> satisfiable by laravel/jetstream[v2.1.0, 2.x-dev].

Installation failed, reverting ./composer.json and ./composer.lock to their original content.