当我运行“Ionic start project name”时，我总是得到这个错误消息:
错误消息
Running command - failed![ERROR] An error occurred while running npm install (exit code 1):
module.js:471
throw err;
^
Error: Cannot find module '../lib/utils/unsupported.js'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at /usr/local/lib/node_modules/npm/bin/npm-cli.js:19:21
at Object.<anonymous> (/usr/local/lib/node_modules/npm/bin/npm-cli.js:79:3)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
如果你正在使用“n”库@ https://github.com/tj/n。执行以下步骤
echo $NODE_PATH
如果节点路径为空，则
sudo n latest - sudo is optional depending on your system
使用n切换Node.js版本后，npm可能无法正常工作。
curl -0 -L https://npmjs.com/install.sh | sudo sh
echo NODE_PATH
您现在应该看到您的节点路径。否则，它可能是别的东西
尝试了以上所有/旧的brew安装答案，没有一个是为我的笔记本电脑工作。
只有下面的方法可以解决我的问题。
1)执行如下命令:
sudo rm -rf /usr/local/lib/node_modules/npm
brew uninstall --force node
2)进入Node.js官方网站https://nodejs.org/en/download/current/下载最新安装包。
3)再次运行你的npm命令，它应该不再有任何错误。
此方法适用于macOS Mojave Version 10.14.4。
这是一个关于从你的计算机操作系统中移除节点的有用视频和博客文章。这是一种不同的删除方法，基于您最初安装节点的方式(brew vs.从https://nodejs.org/en/下载的二进制文件)
if you installed node with Homebrew then brew uninstall node will work. Verify that with running a node -v command in your terminal.
Otherwise and if you have installed the binary file from nodeJS's websitethen you have to run this command in your terminal: sudo rm -rf /usr/local/{bin/{node,npm},lib/node_modules/npm,lib/node,share/man/*/node.*}. Again, verify that with running a node -v command.
In both cases, successful removal of node should result in bash not recognizing what node is if it is completely removed