Npm无法找到“semver”模块

我不能在NodeJS中使用命令提示符使用npm install。我在运行npm install时得到这些错误:

module.js:339
    throw err;
    ^
Error: Cannot find module 'semver'
    at Function.Module._resolveFilename (module.js:337:15)
    at Function.Module._load (module.js:287:25)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)
    at Object.<anonymous> (C:\Users\admin\AppData\Roaming\npm\node_modules\npm\l
ib\config\defaults.js:6:14)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Module.require (module.js:366:17)

当前回答

在brew在我的MacOs Sierra 10.12.6上安装纱线后，我也遇到了同样的麻烦。(并且在brew更新自我后第一次尝试安装，并提示“Homebrew必须在Ruby 2.3下运行!”您正在运行2.0.0。(RuntimeError)”。所以我重新运行了一遍。)

所以我使用n管理器重新安装npm。

通过参数为空的“n”命令切换到另一个节点版本(在我的例子中是8.0) 或者通过“n x.x.x”安装new，其中x.x.x为节点版本号(我需要6.9.1) 删除工作版本号为“n rm x.x.x”，其中x.x.x为节点版本号。如果需要，请使用sudo 通过“n x.x.x”安装工作版本号，其中x.x.x表示节点版本号。如果需要，请使用sudo 切换到节点的工作版本。(参考第一步)

我想问题可能是在sudo下安装的节点。

2017-11-02 10:04:24

其他回答

只需删除/node_modules文件夹，然后重试。,)

你可以使用npm rm来删除它。

你也可以在GitHub上检查这个问题。更具体地说，unnistal是这样的:

Uninstalling So sad to see you go. sudo npm uninstall npm -g Or, if that fails, sudo make uninstall More Severe Uninstalling Usually, the above instructions are sufficient. That will remove npm, but leave behind anything you've installed. If you would like to remove all the packages that you have installed, then you can use the npm ls command to find them, and then npm rm to remove them. To remove cruft left behind by npm 0.x, you can use the included clean-old.sh script file. You can run it conveniently like this: npm explore npm -g -- sh scripts/clean-old.sh npm uses two configuration files, one for per-user configs, and another for global (every-user) configs. You can view them by doing: npm config get userconfig # defaults to ~/.npmrc npm config get globalconfig # defaults to /usr/local/etc/npmrc Uninstalling npm does not remove configuration files by default. You must remove them yourself manually if you want them gone. Note that this means that future npm installs will not remember the settings that you have chosen.

2015-11-23 12:08:58

我也遇到过同样的问题，我解决它的方法是执行