The applet vant webapp component is missing, and the referenced component reports an error

Recently used npm install vant-weapp They found ,miniprogram_npm Several components are missing , such as image、sticky etc. .

Sign in   GitHub: Where the world builds software · GitHub

https://github.com/youzan/vant-weapp

Download the source code , Copy dist All component contents of the folder to your miniprogram_npm that will do .

Another question about referencing components ,app.json Inside , The official component reference description is like this

"van-button": "@vant/weapp/button/index"

My quotation is wrong , Use the following way , For my partner Ben's reference ：

"van-button": "./miniprogram_npm/vant-weapp/button/index",

Someone knows my problem , You can explain , Thank you for ...