error

[devalexandre]

composer require wesleywillians/laravel-pagseguro
Using version dev-master for wesleywillians/laravel-pagseguro
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

Problem 1
- Installation request for wesleywillians/laravel-pagseguro dev-master -> satisfiable by wesleywillians/laravel-pagseguro[dev-master].
- wesleywillians/laravel-pagseguro dev-master requires phpsc/pagseguro 1.0.0alpha7 -> satisfiable by phpsc/pagseguro[1.0.0alpha7] but these conflict with your requirements or minimum-stability.

Installation failed, reverting ./composer.json to its original content.