最近在開發(fā)過程中，遇到了給Mac電腦裝淘寶鏡像遇到的一個(gè)無權(quán)限問題，也就是Mac電腦的終端默認(rèn)情況下打開的是普通用戶模式，安裝淘寶鏡像需要打開管理員模式才行，所以在執(zhí)行命令的時(shí)候不用管理員模式的話，就會(huì)提示無權(quán)限。

本篇博文就來分享一下解決安裝淘寶鏡像的時(shí)候提示無權(quán)限的方法，其實(shí)只要在執(zhí)行安裝淘寶鏡像命令前面加上管理員權(quán)限就行了，具體的報(bào)錯(cuò)提示以及解決方法如下所示。

Mac電腦終端執(zhí)行下載安裝淘寶鏡像命令：npm install -g cnpm --registry=https://registry.npm.taobao.org 之后的報(bào)錯(cuò)無權(quán)限的提示如下所示：

Mac-mini:~ Chen$ npm install -g cnpm --registry=https://registry.npm.taobao.org

npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules

npm ERR! code EACCES

npm ERR! syscall access

npm ERR! path /usr/local/lib/node_modules

npm ERR! errno -13

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: "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!

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.

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

npm ERR! /Users/Chen/.npm/_logs/2020-01-11T01_02_02_782Z-debug.log

上述問題的解決步驟：

使用這個(gè)命令：sudo npm install -g express-generator 也會(huì)有問題；

使用這個(gè)命令：sudo npm install -g cnpm --registry=https://registry.npm.taobao.org --verbose 就可以安裝成功了。

安裝成功提示如下所示：

npm timing action:postinstall Completed in 219ms

npm verb unlock done using /Users/Chen/.npm/_locks/staging-3a08f84d.lock for /usr/local/lib/node_modules/.staging

npm timing stage:executeActions Completed in 10194ms

npm timing stage:rollbackFailedOptional Completed in 2ms

npm timing stage:runTopLevelLifecycles Completed in 19473ms

+ cnpm@6.1.1

added 681 packages from 942 contributors in 19.477s

npm verb exit [ 0, true ]

npm timing npm Completed in 20072ms

npm info ok

總結(jié)

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