Problem installing app via composer?

Question

Yii

I started installing the blog via composer
in the console I wrote
composer require --prefer-dist pendalf89/yii2-blog "*"
and here is the error
Your requirements could not be resolved to an installable set of packages.
Problem 1
- The requested package pendalf89/yii2-blog * is satisfiable by pendalf89/yii2-blog[dev-master] but these conflict with your requirements or minimum-stability.
Installation failed, reverting ./composer.json to its original content.
what could be the problem please.

Answer 1

Minimum stability.