mac 下vue环境安装时遇到的问题记录

1. 使用brew install node 命令安装node 时遇到的问题：

MacBook-Pro:~ zh$ brew install node

==> Downloading https://homebrew.bintray.com/bottles-portable-ruby/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz

Already downloaded: /Users/zh/Library/Caches/Homebrew/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz

Error: Checksum mismatch.

Expected: f1db8863543d256e6a8e704bf618025030b3d22a7a6b19749d19f599b5554212

Actual: d3843f61522afd7a5340aa055847e549ab5f3b0a8ffafab46b556d427b903131

Archive: /Users/zh/Library/Caches/Homebrew/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz

To retry an incomplete download, remove the file above.

Error: Failed to upgrade vendor Ruby.

解决方法：

　　删除：　/Users/zh/Library/Caches/Homebrew/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz 文件 后重新 运行 brew install node 命令

2.　安装vue 时报错 无pacakge.json 文件

zhaichuangdeMacBook-Pro:~ zhaichuang$ sudo npm install vue

Password:

npm WARN saveError ENOENT: no such file or directory, open ‘/Users/zhaichuang/package.json‘

npm notice created a lockfile as package-lock.json. You should commit this file.

npm WARN enoent ENOENT: no such file or directory, open ‘/Users/zhaichuang/package.json‘

npm WARN zhaichuang No description

npm WARN zhaichuang No repository field.

npm WARN zhaichuang No README data

npm WARN zhaichuang No license field.

解决方法：

　　删除 ~(当前目录)下的  package-lock.json  文件 ，运行命令：sudo npm install vue -g

3. 安装vue-cli 时 遇到 npm ERR! Unexpected end of JSON input while parsing near ‘...prebuilt":"^2.1.4","p‘

zhaichuangdeMacBook-Pro:~ zhaichuang$ sudo npm install vue-cli -g

npm WARN deprecated coffee-script@1.12.7: CoffeeScript on NPM has moved to "coffeescript" (no hyphen)

npm ERR! Unexpected end of JSON input while parsing near ‘...prebuilt":"^2.1.4","p‘

 npm ERR! A complete log of this run can be found in:

npm ERR!     /Users/zhaichuang/.npm/_logs/2018-06-01T14_24_54_473Z-debug.log

解决方法： 使用命令 npm cache clean --force 清除缓存 然后再运行命令：sudo npm i --global vue-cli   安装成功