Failed to install laravel/jetstream on laravel 8

UPDATE:

You just need to run php artisan route:cache

https://github.com/laravel/jetstream/issues/186

Uncache your routes and try again.

---

1. Remove jetstream from composer

   composer remove laravel/jetstream
   

2. Then you should be able to cache your routes using

    php artisan route:cache
   

3. Then install jetstream

    composer require laravel/jetstream