Problem to add npm package in Composer

Yii 2.0 Installation and Setup
1

Hello! I’m using Leaflet and his Plugin leaflet-geoman
Leaflet is ok (installed by Composer “npm-asset/leaflet”: “^1.9.4”).
But the Plugin can’t be installd.

image
image1054×196 21.7 KB

I’ve already tried:

"npm-asset/geoman-io/leaflet-geoman-free": "^2.20.0"
"npm-asset/@geoman-io/leaflet-geoman-free": "^2.20.0"
"npm-asset/leaflet-geoman-free": "^2.20.0"

anyone can help me?