I am trying to install package library by composer in YII2. But after running the command from my command prompt I am getting following error
My composer command is
composer.phar require kartik-v/yii2-widget-datetimepicker "*"
Package yiisoft/yii2-codeception is abandoned, you should avoid using it. Use codeception/codeception instead.
When installing by this command
php composer.phar require kartik-v/yii2-social "@dev"
Then I am getting following error
Package facebook/php-sdk-v4 is abandoned, you should avoid using it. Use facebook/graph-sdk instead.
Generating autoload files
Please suggest me how can I resolve this error