Question

我是node.js的新手，我已经安装了node.js并使用commend npm -v检查了它的工作正常，我试图测试它构建开源源项目

github https://github.com/quran/quran.com-frontend

运行项目的命令是

  npm run dev

我收到了这个错误

    C:\Users\Acer\Desktop\quran.com-frontend-master\quran.com-frontend-master>npm run dev

    > quran@1.0.0 dev C:\Users\Acer\Desktop\quran.com-frontend-master\quran.com-frontend-master
    > env NODE_PATH='./src' PORT=8000 UV_THREADPOOL_SIZE=100 node ./webpack/webpack-dev-server.js & env NODE_PATH='./src' PORT=8000 node ./bin/server.js

    'env' is not recognized as an internal or external command,
    operable program or batch file.
    'env' is not recognized as an internal or external command,
    operable program or batch file.

    npm ERR! Windows_NT 10.0.14393
    npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "dev"
    npm ERR! node v6.9.2
    npm ERR! npm  v3.10.9
    npm ERR! code ELIFECYCLE
    npm ERR! quran@1.0.0 dev: `env NODE_PATH='./src' PORT=8000 UV_THREADPOOL_SIZE=100 node ./webpack/webpack-dev-server.js & env NODE_PATH='./src' PORT=8000 node ./bin/server.js`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the quran@1.0.0 dev script 'env NODE_PATH='./src' PORT=8000 UV_THREADPOOL_SIZE=100 node ./webpack/webpack-dev-server.js & env NODE_PATH='./src' PORT=8000 node ./bin/server.js'.
    npm ERR! Make sure you have the latest version of node.js and npm installed.
    npm ERR! If you do, this is most likely a problem with the quran package,
    npm ERR! not with npm itself.
    npm ERR! Tell the author that this fails on your system:
    npm ERR!     env NODE_PATH='./src' PORT=8000 UV_THREADPOOL_SIZE=100 node ./webpack/webpack-dev-server.js & env NODE_PATH='./src' PORT=8000 node ./bin/server.js
    npm ERR! You can get information on how to open an issue for this project with:
    npm ERR!     npm bugs quran
    npm ERR! Or if that isn't available, you can get their info via:
    npm ERR!     npm owner ls quran
    npm ERR! There is likely additional logging output above.
    npm WARN Local package.json exists, but node_modules missing, did you mean to install?

    npm ERR! Please include the following file with any support request:
    npm ERR!     C:\Users\Acer\Desktop\quran.com-frontend-master\quran.com-frontend-master\npm-debug.log

Answer 1

Nodejs和npm不同。 npm（节点包管理器）用于安装nodejs的依赖项。服务器所需的依赖项将列在package.json文件中。看起来env模块存在问题。尝试使用npm

安装dotenv module

npm install dotenv --save

在安装此模块之前，请使用命令

更新您的npm

npm update

Answer 2

您可以在 Windows 中使用 linux 终端（如 git bash）。如果你使用这个，你可以在 npm 上配置脚本 shell：

// for git bash
$ npm config set script-shell "C:\Program Files\git\bin\bash.exe" 
// or
$ npm config set script-shell "C:\Program Files\git\bin\sh.exe"

对于任何其他：

$ npm config set script-shell <Your favorite shell>

Answer 3

在Windows上，默认情况下无法识别“ env”命令；在那里，我找到了两种选择：

例如，使用另一个命令：

    set VARIABLE_NAME=custom name

安装cygwin并将其安装路径设置为Windows环境变量。安装后，您可以从命令行使用：

    env VARIABLE_NAME=custom name

以下是有关cygwin安装的详细信息的链接：https://www.howtogeek.com/howto/41382/how-to-use-linux-commands-in-windows-with-cygwin/

错误＆＃39; env＆＃39;不被视为内部或外部命令？

3 个答案: