drupal/console-extend-plugin is locked to version 0.9.4 and an update of this package was not requested. drupal-composer/drupal-scaffold 2.6.1 requires composer-plugin-api ^1.0.0 -> found composer-plugin-api but it does not match the constraint. drupal-composer/drupal-scaffold is locked to version 2.6.1 and an update of this package was not requested. cweagans/composer-patches 1.6.6 requires composer-plugin-api ^1.0 -> found composer-plugin-api but it does not match the constraint. cweagans/composer-patches is locked to version 1.6.6 and an update of this package was not requested. composer/installers v1.6.0 requires composer-plugin-api ^1.0 -> found composer-plugin-api but it does not match the constraint. composer/installers is locked to version v1.6.0 and an update of this package was not requested. Your lock file does not contain a compatible set of packages. You may need to run composer update with the '-no-plugins' option. The 'drupal-composer/drupal-scaffold' plugin was skipped because it requires a Plugin API version ('^1.0.0') that does not match your Composer installation ('2.1.0'). The 'drupal/console-extend-plugin' plugin was skipped because it requires a Plugin API version ('^1.0') that does not match your Composer installation ('2.1.0'). The 'cweagans/composer-patches' plugin was skipped because it requires a Plugin API version ('^1.0') that does not match your Composer installation ('2.1.0'). The 'composer/installers' plugin was skipped because it requires a Plugin API version ('^1.0') that does not match your Composer installation ('2.1.0'). On running any Composer command the following is outputted: drupal-composer/drupal-scaffold plugins.Composer will not work in these environments. The Drupal 8 sites now have Composer and Drupal Composer plugins that are expecting to use Composer 1 API. I have other Drupal 8 sites running on the same server. As part of that process we looked at upgrading Composer 1 to 2. In a previous article we looked at upgrading 8.9.19 to 9.2.6. The Topic: Upgrading Drupal 8.9.20 to 9.3.0 - resolving globally installed Composer 1 and 2 issues.

Composer update drupal 9