Laravel 在 npm run dev 命令中出现错误答案

【问题标题】：Laravel getting error in npm run dev commandLaravel 在 npm run dev 命令中出现错误
【发布时间】：2018-03-25 07:11:38
【问题描述】：

我在运行时遇到错误

'npm 运行开发'

命令。

> cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --p
rogress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js


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

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\
node_modules\\npm\\bin\\npm-cli.js" "run" "watch"
npm ERR! node v6.11.4
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! @ watch: `cross-env NODE_ENV=development node_modules/webpack/bin/webpa
ck.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/
webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ watch script 'cross-env NODE_ENV=development node_modul
es/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_module
s/laravel-mix/setup/webpack.config.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  package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js
--watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpac
k.config.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls
npm ERR! There is likely additional logging output above.

谁能告诉我这里有什么问题？谢谢

【问题讨论】：

请点击此链接(stackoverflow.com/questions/45034581/…) 可能对您有所帮助
您是否尝试过将其关闭再打开（npm 版）？删除 node_modules 文件夹并再次运行npm install

标签： php node.js laravel

【解决方案1】：

首先你需要执行以下步骤

rm -rf 节点模块
rm package-lock.json yarn.lock
npm 缓存清除 --force
npm install --global cross-env
npm 安装

然后尝试重新启动终端并确保在运行“npm run dev”时没有使用集成终端（例如在 Visual Studio 代码上）。相反，请尝试在不同的 powershell 终端窗口上运行“npm run dev”命令。每次都为我工作。

【讨论】：

【解决方案2】：

升级 Laravel 应用后，我最近遇到了同样的问题。你只需要安装包：

npm install cross-env

【讨论】：