node.js 尝试更新后无法再使用 npm 命令
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Can no longer use npm command after trying to update
提问by user2483724
I was trying to install yeoman but it threw an error regarding self signed certificates.
我试图安装 yeoman，但它抛出了一个关于自签名证书的错误。
I looked this up and I found out I had to upgrade node.
我查了一下，发现我必须升级节点。
Upgrading node however threw this: (forgot to use sudo with it...)
然而升级节点抛出了这个：（忘记使用 sudo ......）
npm ERR! error rolling back Error: EACCES, unlink '/usr/local/lib/node_modules/npm'
npm ERR! error rolling back [email protected] { [Error: EACCES, unlink '/usr/local/lib/node_modules/npm']
After this I couldn't use npm anymore. It couldn't be found:
在此之后，我不能再使用 npm 了。找不到：
/usr/local/bin/npm: No such file or directory
Trying to reinstall with brew:
尝试使用 brew 重新安装：
It appears you already have npm installed at /usr/local/lib/node_modules/npm
Tells me to npm uninstall but I can't use npm anymore.
告诉我 npm uninstall 但我不能再使用 npm 了。
The error message is more detailed but I think the part about "unlinking" is the main thing. How do I go about linking it back up and also why was such a weird error thrown?
错误消息更详细，但我认为关于“取消链接”的部分是主要的。我该如何将它重新链接起来，以及为什么会抛出如此奇怪的错误？
EDIT: also ran npm config set ca ""before trying to update node.
编辑：也在npm config set ca ""尝试更新节点之前运行。
采纳答案by user2483724
Found some links with similar errors and all with different solutions:
找到了一些具有类似错误的链接，并且都具有不同的解决方案：
https://github.com/npm/npm/issues/4099
https://github.com/npm/npm/issues/4099
Error: The 'brew link' step did not complete successfully
How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
如何完全卸载 Node.js，并从头开始重新安装 (Mac OS X)
The answer for the third one helped most I think, specifically:
我认为第三个答案最有帮助，特别是：
go to /usr/local/lib and delete any node and node_modules
转到 /usr/local/lib 并删除任何节点和 node_modules
回答by bahek2462774
I installed using brew after: brew install node
我之后使用 brew 安装： brew install node
sudo brew postinstall node
回答by learn2reid
sudo brew postinstall command works for me. This issue is caused if you try to update a core NPM package without using the sudo command
sudo brew postinstall 命令对我有用。如果您尝试在不使用 sudo 命令的情况下更新核心 NPM 包，则会导致此问题
