NPM多次安裝錯誤

Question

當我嘗試安裝npm時，控制台會顯示以下錯誤和警告：

 npm WARN checkPermissions Missing write access to C:\\Users\\Aristophanes\\node_modules\\web3 npm WARN ajv-keywords@2.1.1 requires a peer of ajv@^5.0.0 but none is installed. You must install peer dependencies yourself. npm WARN eslint-config-react-app@2.1.0 requires a peer of babel-eslint@^7.2.3 but none is installed. You must install peer dependencies yourself. npm WARN eslint-config-react-app@2.1.0 requires a peer of eslint@^4.1.1 but none is installed. You must install peer dependencies yourself. npm WARN eslint-loader@1.9.0 requires a peer of eslint@>=1.6.0 <5.0.0 but none is installed. You must install peer dependencies yourself. npm WARN eslint-plugin-jsx-a11y@5.1.1 requires a peer of eslint@^2.10.2 || ^3 || ^4 but none is installed. You must install peer dependencies yourself. npm WARN firebase-functions@2.1.0 requires a peer of firebase-admin@~6.0.0 but none is installed. You must install peer dependencies yourself. npm ERR! path C:\\Users\\Aristophanes\\node_modules\\web3 npm ERR! code ENOENT npm ERR! errno -4058 npm ERR! syscall access npm ERR! enoent ENOENT: no such file or directory, access 'C:\\Users\\Aristophanes\\node_modules\\web3' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent npm ERR! A complete log of this run can be found in: npm ERR! C:\\Users\\Aristophanes\\AppData\\Roaming\\npm-cache\\_logs\\2018-11-02T23_13_12_948Z-debug.log 

有誰知道我該如何解決？ 謝謝。

Answer 1

嘗試刪除web3文件夾C:\\Users\\Aristophanes\\node_modules\\web3 ，還有node_modules在項目目錄文件夾（如果存在）。 希望它能對您有所幫助:)

Answer 2

有兩種解決方案。

**1. Reinstall npm with a Node version manager (recommended).**

這是避免權限問題的最佳方法。 有關更多信息，請參閱此鏈接（https://docs.npmjs.com/getting-started/installing-node#using-a-version-manager-to-install-nodejs-and-npm）您不需要刪除安裝Node版本管理器之前，使用當前版本的npm或Node.js。

**2. Change npm's default directory manually.**

如果您不使用Windows，則可以使用以下步驟。

To minimize the chance of permissions errors, you can configure npm to use a different directory. In this example, it will be a hidden directory on your home folder.

Back-up your computer before you start.

Make a directory for global installations:

mkdir〜/ .npm-global

Configure npm to use the new directory path:

npm config設置前綴'〜/ .npm-global'

Open or create a ~/.profile file and add this line:

導出PATH =〜/ .npm-global / bin：$ PATH

Back on the command line, update your system variables:

來源〜/ .profile

測試：在不使用sudo的情況下全局下載軟件包。

npm install -g jshint

可以使用相應的ENV變量代替步驟2-4（例如，如果您不想修改〜/ .profile）：

 NPM_CONFIG_PREFIX=~/.npm-global