Installation error (Your requirements could not be resolved to an installable set of packages)

[Webmasters-WPNGO]

Winter CMS Build 1.2.1
PHP Version 8.1

composer require martin/wn-forms-plugin
Using version ^2.0 for martin/wn-forms-plugin
./composer.json has been updated
Running composer update martin/wn-forms-plugin
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - wintercms/winter is present at version 1.0.0+no-version-set and cannot be modified by Composer
    - Only one of these can be installed: winter/wn-builder-plugin[v2.0.6], wintercms/winter[1.0.0+no-version-set]. They both replace rainlab/builder-plugin and thus cannot coexist.
    - winter/wn-builder-plugin is locked to version v2.0.6 and an update of this package was not requested.

You can also try re-running composer require with an explicit version constraint, e.g. "composer require martin/wn-forms-plugin:*" to figure out if any version is installable, or "composer require martin/wn-forms-plugin:^2.1" if you know which you need.

Installation failed, reverting ./composer.json and ./composer.lock to their original content.