error
vue npm run build 报错
| building for production...Error processing file: static/css/app.6f7f38b3dcc243bbf8b8f261017a6621.css
(node:14996) UnhandledPromiseRejectionWarning: CssSyntaxError: E:\work object\signVue\static\css\app.6f7f38b3dcc243bbf8b8f261017a6621.css:1116:8: Unknown word
at Input.error (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\input.js:130:16)
at Parser.unknownWord (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\parser.js:563:22)
at Parser.decl (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\parser.js:235:16)
at Parser.other (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\parser.js:133:18)
at Parser.parse (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\parser.js:77:16)
at parse (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\parse.js:17:12)
at new LazyResult (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\lazy-result.js:60:16)
at Processor.<anonymous> (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\processor.js:138:12)
at Processor.process (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\processor.js:117:23)
at Function.creator.process (E:\work object\signVue\node_modules\_postcss@7.0.27@postcss\lib\postcss.js:148:43)
at OptimizeCssAssetsPlugin.processCss (E:\work object\signVue\node_modules\_optimize-css-assets-webpack-plugin@3.2.1@optimize-css-assets-webpack-plugin\index.js:63:19)
at Object.processor (E:\work object\signVue\node_modules\_optimize-css-assets-webpack-plugin@3.2.1@optimize-css-assets-webpack-plugin\index.js:29:23)
at E:\work object\signVue\node_modules\_last-call-webpack-plugin@2.1.2@last-call-webpack-plugin\index.js:139:8
at arrayEach (E:\work object\signVue\node_modules\_lodash@4.17.15@lodash\_arrayEach.js:15:9)
at forEach (E:\work object\signVue\node_modules\_lodash@4.17.15@lodash\forEach.js:38:10)
at LastCallWebpackPlugin.process (E:\work object\signVue\node_modules\_last-call-webpack-plugin@2.1.2@last-call-webpack-plugin\index.js:136:3)
(node:14996) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was
not handled with .catch(). (rejection id: 2)
(node:14996) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
一、报错内容
building for production…Error processing file: static/css/app.文件id.css
(node:1700) UnhandledPromiseRejectionWarning: CssSyntaxError: E:\项目路径\static\css\app.a8071d931d4fde333adb984da7273dc6.css:136:3: Unknown word
二、报错原因
仔细读了终端打印出的所有内容，仍然没有发现任何有效的提示，也没找到出现问题的文件所在路径。唯一的理解可能就是Unknow word表示构建项目时不知道// 我的注释是什么东西吧，最终发现是在vue组件或者css文件中使用了//(如下)的注释方式：
三、解决方法
删除所有vue组件、css文件中的这种注释
采用/* 这是我的注释 */ 方式来注释备注内容。
https://blog.csdn.net/CSDN_X_W/article/details/104655805
这个问题 我百度了很久 网上没有明确的答案，导致浪费了大量的时间 后面看到一篇文章说这个是css的问题 于是想到了解决方案
把引入的css文件先全部注释 排除法 先确定是哪个文件导致的报错 然后再更具体地定位
总结: 当碰到的bug 不确定很模糊的时候 首先要确定问题的大概是什么 这样才有思路 去解决 而不是盲目去猜,解决问题架子，也就是：问题-原因-解决方案
Module build failed: Error: Missing binding E:\ethernet-dapp-app\node_modules\node-sass\vendor\win32-x64-72\binding.node
Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js 12.x
Found bindings for the following environments:
- Windows 64-bit with Node.js 12.x
This usually happens because your environment has changed since running `npm install`.
Run `npm rebuild node-sass` to download the binding for your current environment.
at module.exports (E:\ethernet-dapp-app\node_modules\node-sass\lib\binding.js:15:13)
at Object.<anonymous> (E:\ethernet-dapp-app\node_modules\node-sass\lib\index.js:14:35)
at Module._compile (internal/modules/cjs/loader.js:959:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:995:10)
at Module.load (internal/modules/cjs/loader.js:815:32)
at Function.Module._load (internal/modules/cjs/loader.js:727:14)
at Module.require (internal/modules/cjs/loader.js:852:19)
at require (internal/modules/cjs/helpers.js:74:18)
at getDefaultSassImpl (E:\ethernet-dapp-app\node_modules\sass-loader\dist\index.js:198:10)
at Object.loader (E:\ethernet-dapp-app\node_modules\sass-loader\dist\index.js:80:29)
Module build failed: Error: Missing binding C:\Users\Administrator\Desktop\新建文件夹\mall\node_modules\node-sass\vendor\win32-x64-64\binding.node
解决办法：npm i node-sass
