php8 error - Githubissues

hello auther: building in php version:8.0.0 Problem 1

Root composer.json requires php ^7.1.3 but your php version (8.0.0) does not satisfy that requirement. Problem 2
laravel/framework[v5.8.0, ..., 5.8.x-dev] require php ^7.1.3 -> your php version (8.0.0) does not satisfy that requirement.
Root composer.json requires laravel/framework 5.8.* -> satisfiable by laravel/framework[v5.8.0, ..., 5.8.x-dev].

jqhph / dcat-admin-demo