cannot install #2
Description
./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
- The requested package cb-techservices/yii2-notification-system * is satisfiable by cb-techservices/yii2-notification-system[dev-master] but these conflict with your requirements or minimum-stability.
Installation failed, reverting ./composer.json to its original content.
my composer requires
"require": {
"php": ">=5.6.0",
"yiisoft/yii2": "~2.0.14",
}