无法在MacOS上安装TypeScript-终端错误

Question

我有Visual Studio Code在我的Mac和想安装TypeScript的角。我以前已经安装了Node.js或Git我想。来自TypeScript网站的这个命令应该安装TypeScript，如果它在Mac终端中运行，但是它没有：

npm install -g typescript

如果我将其粘贴到终端中并按enter键，终端中会出现以下错误代码：（问题出在哪里？我真的不明白，也不知道终端是什么，我不是电脑专家。如果你有简单易懂的提示，对初学者会有很大帮助。谢谢！！）

MacBook-Pro:~ Max$ npm install -g typescript
npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
npm ERR! path /usr/local/lib/node_modules
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall access
npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
npm ERR!  { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules']
npm ERR!   stack:
npm ERR!    'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'',
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'access',
npm ERR!   path: '/usr/local/lib/node_modules' }
npm ERR! 
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR! 
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator (though this is not recommended).

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/Max/.npm/_logs/2018-06-30T14_50_35_633Z-debug.log
MacBook-Pro:~ Max$ clear

    MacBook-Pro:~ Max$ npm install -g typescript
    npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
    npm ERR! path /usr/local/lib/node_modules
    npm ERR! code EACCES
    npm ERR! errno -13
    npm ERR! syscall access
    npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
    npm ERR!  { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules']
    npm ERR!   stack:
    npm ERR!    'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'',
    npm ERR!   errno: -13,
    npm ERR!   code: 'EACCES',
    npm ERR!   syscall: 'access',
    npm ERR!   path: '/usr/local/lib/node_modules' }
    npm ERR! 
    npm ERR! The operation was rejected by your operating system.
    npm ERR! It is likely you do not have the permissions to access this file as the current user
    npm ERR! 
    npm ERR! If you believe this might be a permissions issue, please double-check the
    npm ERR! permissions of the file and its containing directories, or try running
    npm ERR! the command again as root/Administrator (though this is not recommended).

    npm ERR! A complete log of this run can be found in:
    npm ERR!     /Users/Max/.npm/_logs/2018-06-30T14_58_29_869Z-debug.log
    MacBook-Pro:~ Max$ clear

    MacBook-Pro:~ Max$ npm install -g typescript
    npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
    npm ERR! path /usr/local/lib/node_modules
    npm ERR! code EACCES
    npm ERR! errno -13
    npm ERR! syscall access
    npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
    npm ERR!  { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules']
    npm ERR!   stack:
    npm ERR!    'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'',
    npm ERR!   errno: -13,
    npm ERR!   code: 'EACCES',
    npm ERR!   syscall: 'access',
    npm ERR!   path: '/usr/local/lib/node_modules' }
    npm ERR! 
    npm ERR! The operation was rejected by your operating system.
    npm ERR! It is likely you do not have the permissions to access this file as the current user
    npm ERR! 
    npm ERR! If you believe this might be a permissions issue, please double-check the
    npm ERR! permissions of the file and its containing directories, or try running
    npm ERR! the command again as root/Administrator (though this is not recommended).

Answer 1

npm警告检查权限缺少对 /usr/local/lib/node_modules的写访问权限

意味着您需要下载到该位置的权限，它需要root权限的原因可能是因为您使用root权限安装了nodejs/npm。

sudo npm安装-g typescript

然后输入密码