npm常见错误

三个方面

1. npm ERR! code ELIFECYCLE npm ERR! errno 1

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] install: `node install.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

解决方案：
将

 npm install

改成

npm install --save-dev node-sass

2. npm run dev error [npm ERR! code ELIFECYCLE]

Laravel Mix Version: 1.4.3 
Node Version: v8.9.1 
NPM Version: 5.5.1 
OS: macOS 10.12.6

Description: 
ze Chunks Chunk Names 
mix.js 8.27 kB 0 [emitted] mix 
npm ERR! code ELIFECYCLE 
npm ERR! errno 2 
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! Exit status 2 
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! /Users/sunny/.npm/_logs/2017-12-21T17_00_33_319Z-debug.log 
npm ERR! code ELIFECYCLE 
npm ERR! errno 2 
npm ERR! @ dev: npm run development 
npm ERR! Exit status 2 
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: 
npm ERR! /Users/sunny/.npm/_logs/2017-12-21T17_00_33_347Z-debug.log

node_modules安装问题，执行以下：

rm -rf node_modules
rm package-lock.json
npm cache clear --force
npm install

这一步清除npm缓存很重要

npm cache clear --force

3. npm install时,报错 install: node install.js安装失败

 error [email protected] install: `node install.js`
 error Exit status 1
 error Failed at the [email protected] install script.
 error This is probably not a problem with npm. There is likely additional logging output above.

初步判断是这个zip文件没下载下来，然后手动下载一个chromedriver_win32.zip丢到C:\Users\用户\AppData\Local\Temp\chromedriver\目录下，结果因为这是一个临时文件夹，每次初始化的时候都会重新下载这个文件，从而又无法初始化解决方案 ：

1. 加参数

npm install --ignore-scripts

2. 更换数据源

npm install chromedriver --chromedriver_cdnurl=http://cdn.npm.taobao.org/dist/chromedriver