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yarn 安装报错解决
error info
error An unexpected error occurred: "C:\\Users\\z\\AppData\\Local\\Yarn\\Cache\\v4\\npm-jest-environment-jsdom-22.4.3-d67daa4155e33516aecdd35afd82d4abf0fa8a1e\\node_modules\\jest-environment-jsdom\\package.json: Unexpected end of JSON input".
info If you think this is a bug, please open a bug report with the information provided in "E:\\工作\\huozi-landing\\yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
solve method
yarn cache cleannvm常见操作
// 安装node版本，比如安装10.18
nvm install 10.18
// 查看已经安装的版本
nvm list
nvm ls
// 使用某个版本
nvm use 10.18
// 删除某个版本
nvm uninstall 10.18
// 显示当前使用版本
nvm current淘宝源设置
淘宝 npm地址： http://npm.taobao.org/
临时使用
$ npm --registry https://registry.npm.taobao.org install express
持久使用
$ npm config set registry https://registry.npm.taobao.org
配置后可通过下面方式来验证是否成功
$ npm config get registry
恢复官方地址
$ npm config set registry https://registry.npmjs.org
配置文件.npmrc,npm缓存和全局node包
快捷修改.npmrc文件
$ npm config edit
.npmrc配置文件位置
$ npm config list
查看; userconfig那一行
缓存目录
$ npm config get cache
全局包位置
$ npm config get prefix
查看全局安装了哪些包
$ npm list -g --depth 0
| 命令 | 解释 |
|---|---|
| npm list | 显示安装过的包 |
| -g | 全局 |
| --depth 0 | 限制输出模块层级 |
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