What is the error when installing fancybox 3 on yii2?

Question

Yii

Hello! When installing fancybox3 on yii2 composer, I ran into a problem, the following entry is displayed:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package newerton/yii2-fancybox-3 * is satisfiable by newerton/yii2-fancybox-3[dev-master] but these conflict with your requirements or minimum-stability.

As I understand it, the installed library may conflict with the already installed ones, tell me what to do in this case? Has anyone experienced this and how to fix it?

Answer 1

This package does not have any version. Only dev-master.
You have written in composer.json that you can not use stable versions.
If Pts need to use this package - write the explicit version in the composer for this package as dev-master

Answer 2

?

php composer.phar global require "fxp/composer-asset-plugin:^1.3.1"