yii2 composer update fatal error

Question

When I update my composer to add yii2-solr extension to my project, I encounter with an error like below:

The \"yiisoft/yii2-composer\" plugin requi         


        

Answer 1

1) Remove old version of Composer Asset Plugin:

composer global remove "fxp/composer-asset-plugin"

2) Install newer version. Recommended version for installation is now (by the moment of writing this) 1.1.1 (see official docs).

composer global require "fxp/composer-asset-plugin:~1.1.1"

I'd even recommend to use:

composer global require "fxp/composer-asset-plugin:*"

3) Run composer install in your project folder. In case of errors, delete vendor folder contents and composer.lock file and run composer install again.