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.

Answer 2

If arogachev's answer doesn't exactly work for you, here is a quick fix.

1. Manually delete the vendor folder in your global composer installation. The folder to delete for eg. on ubuntu : /home/user/.composer/vendor
2. Install the newer version of the plugin

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

That should be all. You will get all your files back and you can continue

Answer 3

Bower-Asset skip way:

You can require yidas/yii2-composer-bower-skip before yiisoft/yii2 in composer.json file:

"require": {
    "php": ">=5.4.0",      
    "yidas/yii2-composer-bower-skip": "~2.0.0", 
    "yiisoft/yii2": ">=2.0.5",
    "yiisoft/yii2-bootstrap": "*",
    ...

Then run composer update.

This case is for that you don't need the update for Bower.

See https://github.com/yidas/yii2-composer-bower-skip

Answer 4

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