在安裝sass插件時報錯
$ npm install sass-loader node-sass --save-dev
//返回的報錯信息
npm ERR! code EPERM
npm ERR! syscall mkdir
npm ERR! path C:\Users\jinwe\truth_hold\node_modules\node-sass\node_modules
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, mkdir 'C:\Users\jinwe\truth_hold\node_modules\node-sass\node_modules'
npm ERR! [OperationalError: EPERM: operation not permitted, mkdir 'C:\Users\jinwe\truth_hold\node_modules\node-sass\node_modules'] {
npm ERR! cause: [Error: EPERM: operation not permitted, mkdir 'C:\Users\jinwe\truth_hold\node_modules\node-sass\node_modules'] {
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'mkdir',
npm ERR! path: 'C:\\Users\\jinwe\\truth_hold\\node_modules\\node-sass\\node_modules'
npm ERR! },
npm ERR! stack: "Error: EPERM: operation not permitted, mkdir 'C:\\Users\\jinwe\\truth_hold\\node_modules\\node-sass\\node_modules'",
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'mkdir',
npm ERR! path: 'C:\\Users\\jinwe\\truth_hold\\node_modules\\node-sass\\node_modules',
npm ERR! parent: 'truth_hold'
npm ERR! }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It's possible that the file was already in use (by a text editor or antivirus),
npm ERR! or that you lack permissions to access it.
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\jinwe\AppData\Roaming\npm-cache\_logs\2019-11-05T01_54_51_276Z-debug.log
C:\Users\jinwe\truth_hold>npm run dev
> truth_hold@1.0.0 dev C:\Users\jinwe\truth_hold
> node build/dev-server.js wx
ERROR Failed to compile with 2 errors
這時運行npm ls，會出現這個下面的錯誤
$ npm ls
//返回的報錯信息
npm ERR! peer dep missing: webpack@^4.36.0, required by sass-loader@8.0.0
npm ERR! peer dep missing: vue-template-compiler@^2.0.0, required by vue-loader@13.7.3
並且啓動項目的時候報錯
$ npm run dev
//返回的錯誤信息，已簡化
ERROR in Cannot find module 'node-sass'
this.getResolve is not a function
這是因爲當前sass的版本太高，webpack編譯時出現了錯誤，這個時候只需要換成低版本的就行
修改package.json文件，將裏面的 "sass-loader"的版本換成更低的版本，比如我現在是"sass-loader": "^8.0.0"換成了"sass-loader": "^7.3.1"
重新安裝sass，再啓動項目就成功了
//重新安裝sass
$ npm install sass-loader node-sass --save-dev
//啓動項目
$ npm run dev