keep prompting these errors during npm install:

npm WARN deprecated bfj-node4@5.3.1: Switch to the bfj package for fixes and new for compatibility with current and future versions of Node.js!
npm WARN deprecated browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist > 3.0 config used in other tools.
npm WARN deprecated graceful-fs@3.0.11: please upgrade to graceful-fs 4 for compatibility with current and future versions of Node.js

uglifyjs-webpack-plugin@0.4.6 postinstall E:gitmpvuemptestnode_moduleswebpacknode_modulesuglifyjs-webpack-plugin
node lib/post_install.js

npm WARN rollback Rolling back node-pre-gyp@0.10.0 failed (this is probably harmless): EPERM: operation not permitted, lstat"Elug gitmpvuemptestnodeparts modulesfseventsnodeparts modules"
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN vue-loader@13.7.2 requires a peer of vue-template-compiler@ ^ 2.0.0 but none is installed. You must install peer dependencies yourself.

it"s not a big problem when running Mini Program, that is, the page of the newly added page main.json in pages will not be updated automatically.