1. D:\vuejselement\workSpace\zutnlp_platform_show>cnpm install --save core-js/modules/es6.array.find-index
    2. × Install fail! Error: [@core-js/modules/es6.array.find-index] resolved target D:\vuejselement\workSpace\zutnlp_platform_show\core-js\modules\es6.array.find-index error: ENOENT: no such file or directory, lstat 'D:\vuejselement\workSpace\zutnlp_platform_show\core-js'
    3. Error: [@core-js/modules/es6.array.find-index] resolved target D:\vuejselement\workSpace\zutnlp_platform_show\core-js\modules\es6.array.find-index error: ENOENT: no such file or directory, lstat 'D:\vuejselement\workSpace\zutnlp_platform_show\core-js'
    4.     at module.exports (C:\Users\sunxinxin\AppData\Roaming\npm\node_modules\cnpm\node_modules\npminstall\lib\download\local.js:30:11)
    5.     at module.exports.throw (<anonymous>)
    6.     at onRejected (C:\Users\sunxinxin\AppData\Roaming\npm\node_modules\cnpm\node_modules\co\index.js:81:24)
    7. npminstall version: 3.20.2
    8. npminstall args: D:\vuejselement\NodeJs\node.exe C:\Users\sunxinxin\AppData\Roaming\npm\node_modules\cnpm\node_modules\npminstall\bin\install.js --fix-bug-versions --china --userconfig=C:\Users\sunxinxin\.cnpmrc --disturl=https://npm.taobao.org/mirrors/node --registry=https://registry.npm.taobao.org --save core-js/modules/es6.array.find-index

    core-js版本太高
    安装了淘宝镜像就可以
    cnpm install core-js@2