npm install vant --save
npm i babel-plugin-import -D
npm i vant -S
- less版本报错
// 删掉以前版本，package.json改成如下版本
"less": "^3.12.2",
"less-loader": "^7.0.2"
- vant版本报错
// 删掉以前vant版本，重装"vant": "^3.0.0-beta.5"
"export 'default' (imported as 'Vue') was not found in 'vue'