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

对我来说,它发生在我的项目从gulp 3升级到gulp 4的时候。 所以,当我运行“gulp watch”命令时,它抛出了同样的错误。

这可能是由于与我的全球安装的gulp版本不匹配。

因此,要么用“-g”全局标志升级gulp会有所帮助,要么我按照下面的方法进行

但是,我在我的项目中使用了“./node_modules/.bin/gulp watch”。这确保了gulp需要的所有依赖项都只取自node_modules。

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.

我得到了同样的错误,我解决了它。

删除package-lock。Json文件和node_modules文件夹,然后安装NPM

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。

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

只要检查你的预安装脚本,如果你有一个。有时候为了限制node和npm的版本,你需要运行一个项目。

如果是这种情况,你需要通过npm install -g semver手动安装semver