執行 yarn add cross-env 報錯 :
error An unexpected error occurred: "EIO: i/o error, symlink '../../../parser/bin/babel-parser.js' -> '/home/vagrant/Code/weibo/node_modules/@babel/core/node_modules/.bin/parser'".
解決方案：
執行 yarn add cross-env --save --no-bin-links
再次執行 npm run dev 報錯：
sh: 1: cross-env: not found
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! @ development: cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the @ development script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /home/vagrant/.npm/_logs/2019-11-25T09_47_21_201Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ dev: npm run development
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
解決方案：去掉 package.json裡面的 cross-env
再次執行 npm run dev 未報錯，提示如下：
Additional dependencies must be installed. This will only take a moment.
Running: npm install vue-template-compiler --save-dev --production=false
嘗試解決方案：
按照提示執行 npm install vue-template-compiler --save-dev --production=false
再次報錯：
npm ERR! path /home/vagrant/Code/weibo/node_modules/.vue-template-compiler.DELETE/.nfs000000000001146200000001
npm ERR! code EBUSY
npm ERR! errno -16
npm ERR! syscall unlink
npm ERR! EBUSY: resource busy or locked, unlink '/home/vagrant/Code/weibo/node_modules/.vue-template-compiler.DELETE/.nfs000000000001146200000001'
npm ERR! A complete log of this run can be found in:
npm ERR! /home/vagrant/.npm/_logs/2019-11-25T09_56_15_438Z-debug.log
由於技術盲點，此錯誤沒有解決；還望看到文章的大神幫忙一下；萬般無奈之下，繼續執行 npm run dev，竟然成功了；