laravel5.5 The requested package tymon/jwt-auth 1.0.* is satisfiable by tymon/jwt-auth
laravel5.5 The requested package tymon/jwt-auth 1.0.* is satisfiable by tymon/jwt-auth but these conflict with your requirements or minimum-stability.
使用如下命令安装
composer require tymon/jwt-auth 1.0.0-rc.1