I had the same issue,the reason for it was npm package manager was not installed while installing node. This was caused because of the following mistake: In the installation process there is a step called "Custom Setup", here you have the option to choose one of the following: 1) Node.js runtime (This is selected by default). 2) npm package manager 3) Online documentation shortcuts. 4) Add to Path. If you proceed as it is npm package manager will not be installed and hence you will get the error.

解决方案: 当你得到这些选项时，选择npm包管理器。 这对我很管用。

npm文件应该在/usr/local/bin/npm.如果没有，请在他们的网站上重新安装node.js。这对我来说很管用。

所以，对于那些使用:

NVM和自制

请务必设置节点版本号。对我来说，我的节点版本已不再设置。所以，我检查了我使用的版本

nvm劳拉·舒尔茨

这列出了v16.13.1，所以我设置它使用这个

NVM使用16

一旦我的节点版本设置好，NPM命令又可以工作了

**编辑**

警告!做chmod 777是一个相当激进的解决方案。先试试这些，一次一个，其中一个管用就停止:

$ sudo chmod -R 777 /usr/local/lib/node_modules/npm $ sudo chmod -R 777 /usr/local/lib/node_modules . sh $ sudo chmod g+w /usr/local/lib $ sudo chmod g+rwx /usr/local/lib

---

$ brew postinstall节点是我唯一会遇到问题的安装部分

Permission denied - /usr/local/lib/node_modules/npm/.github

So I

// !! READ EDIT ABOVE BEFORE RUNNING THIS CODE !!
$ sudo chmod -R 777 /usr/local/lib
$ brew postinstall node

中提琴，NPM现在被连接了

$ npm -v
3.10.10

---

额外的

如果你在lib上使用-R 777，我的建议是将嵌套文件和目录设置为默认设置:

$ find /usr/local/lib -type f -print -exec chmod 644 {} \; $ find /usr/local/lib -type d -print -exec chmod 755 {} \; $ chmod /usr/local/lib 755

对于MAC用户，以下步骤对我来说是有效的。

如果你得到Error for Brew，下面是你需要在终端中首先输入的命令:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Then run following commands:

$ brew update
$ brew uninstall node
$ brew install node
$ brew postinstall 

我在《Homestead》中也遇到了同样的问题，并尝试了许多方法。 我试过

Sudo apt-get install nodejs

我得到以下错误:

The following packages have unmet dependencies:
 npm : Depends: nodejs but it is not going to be installed
       Depends: node-abbrev (>= 1.0.4) but it is not going to be installed
       Depends: node-ansi (>= 0.3.0-2) but it is not going to be installed
       Depends: node-ansi-color-table but it is not going to be installed
       Depends: node-archy but it is not going to be installed
       Depends: node-block-stream but it is not going to be installed
       Depends: node-fstream (>= 0.1.22) but it is not going to be installed
       Depends: node-fstream-ignore but it is not going to be installed
       Depends: node-github-url-from-git but it is not going to be installed
       Depends: node-glob (>= 3.1.21) but it is not going to be installed
       Depends: node-graceful-fs (>= 2.0.0) but it is not going to be installed
       Depends: node-inherits but it is not going to be installed
       Depends: node-ini (>= 1.1.0) but it is not going to be installed
       Depends: node-lockfile but it is not going to be installed
       Depends: node-lru-cache (>= 2.3.0) but it is not going to be installed
       Depends: node-minimatch (>= 0.2.11) but it is not going to be installed
       Depends: node-mkdirp (>= 0.3.3) but it is not going to be installed
       Depends: node-gyp (>= 0.10.9) but it is not going to be installed
       Depends: node-nopt (>= 3.0.1) but it is not going to be installed
       Depends: node-npmlog but it is not going to be installed
       Depends: node-once but it is not going to be installed
       Depends: node-osenv but it is not going to be installed
       Depends: node-read but it is not going to be installed
       Depends: node-read-package-json (>= 1.1.0) but it is not going to be installed
       Depends: node-request (>= 2.25.0) but it is not going to be installed
       Depends: node-retry but it is not going to be installed
       Depends: node-rimraf (>= 2.2.2) but it is not going to be installed
       Depends: node-semver (>= 2.1.0) but it is not going to be installed
       Depends: node-sha but it is not going to be installed
       Depends: node-slide but it is not going to be installed
       Depends: node-tar (>= 0.1.18) but it is not going to be installed
       Depends: node-underscore but it is not going to be installed
       Depends: node-which but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

最后我尝试了

Sudo apt-get dist-upgrade

它运行得很好。

root@homestead:/usr/local/bin# npm -v
3.10.10

root@homestead:/usr/local/bin# node -v
v6.13.0