是什么原因导致错误:EACCES:权限被拒绝，访问'/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! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'access',
npm ERR! path: '/usr/local/lib/node_modules' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/macbookmd101/.npm/_logs/2018-02-21T16_26_08_421Z-debug.log
如果你在Mac上遇到了这个问题，请遵循以下步骤
首先检查谁是这个文件的所有者使用以下命令
ls -la /usr/local/lib/node_modules
你会在下面找到一些文件其中一个在下面
drwxr-xr-x 3 root wheel 768 May 29 02:21 node_modules
你有没有注意到上面的文件是由root拥有的，为了在里面做改变，你需要改变所有者的路径。
该命令用于检查谁是当前用户
id -un (in my case user is yamsol)
然后您可以通过调用这个命令来更改(只需将您的用户名替换为ownerName)
sudo chown -R ownerName: /usr/local/lib/node_modules
在我的例子中，你知道用户是“yamsol”，我将以这种方式调用这个命令
sudo chown -R yamsol: /usr/local/lib/node_modules
这是它。
更改您的文件权限…像这样
首先检查谁拥有这个目录
ls -la /usr/local/lib/node_modules
它拒绝访问，因为node_module文件夹属于root用户
drwxr-xr-x 3 root wheel 102 Jun 24 23:24 node_modules
所以这需要通过将root改为你的用户来改变，但首先运行下面的命令来检查你的当前用户，我如何通过OS X中的命令行获得活动用户的名称?
id -un或者whoami
然后换主人
sudo chown -R [owner]:[owner] /usr/local/lib/node_modules
OR
sudo chown -R ownerName: /usr/local/lib/node_modules
OR
sudo chown -R $USER /usr/local/lib/node_modules
对于linux / ubuntu如果命令
NPM install -g <package_name>
npm WARN deprecated superagent@4.1.0: Please note that v5.0.1+ of superagent removes User-Agent header by default, therefore you may need to add it yourself (e.g. GitHub blocks requests without a User-Agent header). This notice will go away with v5.0.2+ once it is released.
npm ERR! path ../lib/node_modules/<package_name>/bin/..
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall symlink
npm ERR! Error: EACCES: permission denied, symlink '../lib/node_modules
/<package_name>/bin/..' -> '/usr/local/bin/<package_name>'
npm ERR! { [Error: EACCES: permission denied, symlink '../lib/node_modules/<package_name>/bin/..' -> '/usr/local/bin/<package_name>']
npm ERR! cause:
npm ERR! { Error: EACCES: permission denied, symlink '../lib/node_modules/<package_name>/bin/..' -> '/usr/local/bin/<package_name>'
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'symlink',
npm ERR! path: '../lib/node_modules/<package_name>/bin/..',
npm ERR! dest: '/usr/local/bin/ionic' },
npm ERR! stack:
npm ERR! 'Error: EACCES: permission denied, symlink \'../lib/node_modules/ionic/bin/ionic\' -> \'/usr/local/bin/ionic\'',
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'symlink',
npm ERR! path: '../lib/node_modules/<package-name>/bin/<package-name>',
npm ERR! dest: '/usr/local/bin/<package-name>' }
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! /home/User/.npm/_logs/2019-07-29T01_20_10_566Z-debug.log
修复:安装与根权限
Sudo NPM install <package_name> -g
