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

我也有同样的问题,但这是由损坏的包裹锁引起的。json文件。

删除package-lock。Json和运行NPM install再次为我修复了它。

其他回答

我也遇到过同样的问题,我解决它的方法是执行

PATH="$PATH"

在终端中,问题是终端保留了旧的nodejs路径,而不是使用新的路径。

我在这里也面临同样的问题。

如果在运行brew install yarn后发生这种情况,请尝试运行yarn global add npm和voilà -已修复!

提醒一下,可执行npm通过node env执行:

xb@dnxb:/tmp$ type -a npm
npm is /usr/bin/npm
npm is /bin/npm
xb@dnxb:/tmp$ realpath /usr/bin/npm /bin/npm
/usr/share/npm/bin/npm-cli.js
/usr/share/npm/bin/npm-cli.js
xb@dnxb:/tmp$ 
xb@dnxb:/tmp$ head -1 /usr/share/npm/bin/npm-cli.js
#!/usr/bin/env node

我可以通过-a类型检查哪个节点被选择,第一行具有最优先级,即,如果我运行/usr/local/bin/node /usr/share/npm/bin/npm-cli.js,我可以得到相同的错误,但如果我运行/usr/bin/node /usr/share/npm/bin/npm-cli.js,则没有错误:

xb@dnxb:/tmp$ type -a node
node is /usr/local/bin/node
node is /usr/bin/node
node is /bin/node
xb@dnxb:/tmp$ realpath /usr/local/bin/node
/usr/local/bin/node
xb@dnxb:/tmp$ realpath /usr/bin/node
/usr/bin/node
xb@dnxb:/tmp$ realpath /bin/node
/usr/bin/node
xb@dnxb:/tmp$ 

有2个唯一的基于realpath的节点exe。如果你有类似的情况,那么你需要找出如何删除不需要的/损坏的节点exe,例如sudo rm /usr/local/bin/node或操纵env $PATH。

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.

在我的情况下,macOS(10.13.6),当我执行以下命令时

npm install -g react-native-cli

我得到了这个错误

Error: Cannot find module 'semver'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:690:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/unsupported.js:2:14)
    at Module._compile (internal/modules/cjs/loader.js:776:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)

执行命令后错误得到解决

yarn global add npm

由@Ashoor提议