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

Rollback composer to 1.x version - the said plugin does not work (yet) with composer 2.x (as discussed here):

sudo composer self-update --rollback