composer require philippfrenzel/yii2fullcalendar "*"
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Installation failed, reverting ./composer.json to its original content.
[UnexpectedValueException]
Could not parse version constraint >=~2: Invalid version string "~2"
composer require philippfrenzel/yii2fullcalendar "*" ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev)
Installation failed, reverting ./composer.json to its original content.
[UnexpectedValueException]
Could not parse version constraint >=~2: Invalid version string "~2"