Cannot find module 'stylus'

Cannot find module 'stylus'

出现以下错误：

Module build failed: Error: Cannot find module 'stylus'

at Function.Module._resolveFilename (module.js:470:15)

at Function.Module._load (module.js:418:25)

at Module.require (module.js:498:17)

at require (internal/module.js:20:19)

at Object. (D:\Vue\sell\node_modules.2.5.0@stylus-loader\index.js:2:14)

at Module._compile (module.js:571:32)

at Object.Module._extensions..js (module.js:580:10)

at Module.load (module.js:488:32)

at tryModuleLoad (module.js:447:12)

at Function.Module._load (module.js:439:3)

at Module.require (module.js:498:17)

at require (internal/module.js:20:19)

at loadLoader (D:\Vue\sell\node_modules.2.3.0@loader-runner\lib\loadLoader.js:13:17)

at iteratePitchingLoaders (D:\Vue\sell\node_modules.2.3.0@loader-runner\lib\LoaderRunner.js:169:2)

at iteratePitchingLoaders (D:\Vue\sell\node_modules.2.3.0@loader-runner\lib\LoaderRunner.js:165:10)

at D:\Vue\sell\node_modules.2.3.0@loader-runner\lib\LoaderRunner.js:173:18

@ ./~/.2.0.3@vue-style-loader!./~/.0.26.2@css-loader?{"minimize":false,"sourceMap":false}!./~/.11.1.3@vue-loader/lib/style-rewriter.js?{"id":"data-v-6bc965e0","scoped":false,"hasInlineConfig":false}!./~/.2.5.0@stylus-loader?{"sourceMap":false}!./~/.11.1.3@vue-loader/lib/selector.js?type=styles&index=0!./src/components/header/header.vue 4:14-416 13:3-17:5 14:22-424

@ ./src/components/header/header.vue

@ ./~/.6.3.2@babel-loader/lib!./~/.11.1.3@vue-loader/lib/selector.js?type=script&index=0!./src/App.vue

@ ./src/App.vue

@ ./src/main.js

@ multi ./build/dev-client ./src/main.js

原因：

需要安装stylus 再安装stylus-loader

解决方法：

按顺序执行以下命令，

npm install stylus --save-dev

npm install stylus-loader --save-dev