这种问题怎么解决啊，大佬

Question

Error: Cannot find module 'webpack/bin/config-optimist'                              at Function.Module._resolveFilename (internal/modules/cjs/loader.js:582:15)         at Function.Module._load (internal/modules/cjs/loader.js:508:25)                   at Module.require (internal/modules/cjs/loader.js:637:17)                           at require (internal/modules/cjs/helpers.js:22:18)                                   at Object.(C:\Users\asus\Desktop\pro11ject\m18jup\admin\node_modules\webpack-dev-server\bin\webpack-dev-server.js:64:1)                                  at Module._compile (internal/modules/cjs/loader.js:701:30)     at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)             at Module.load (internal/modules/cjs/loader.js:600:32)                               at tryModuleLoad (internal/modules/cjs/loader.js:539:12)                             at Function.Module._load (internal/modules/cjs/loader.js:531:3)                  npm ERR! code ELIFECYCLE                                                             npm ERR! errno 1                                                                     npm ERR! mmall_admin_fe@1.0.0 dev_win: `set WEBPACK_ENV=dev && webpack-dev-server --port 8086 --inline --secure false`                                               npm ERR! Exit status 1                                                               npm ERR!                                                                             npm ERR! Failed at the mmall_admin_fe@1.0.0 dev_win 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!     C:\Program Files\nodejs\node_cache\_logs\2019-05-11T12_52_10_724Z-debug.log

Answer 1

一般这种问题，是有些包下载失败了。我们可以使用cnpm，具体做法：

1、把node_modules文件夹先删掉
2、如果没安装过cnpm，就去安装一下： npm install -g cnpm
3、cnpm install