错误:无法使用nodemon找到模块交叉env

Question

当我运行时，我在我的应用程序中没有安装任何恶魔。

npm run prod

我得到以下错误

module.js:550
    throw err;
    ^

Error: Cannot find module 'C:\Users\jelly\lavalite-new\cross-env'
    at Function.Module._resolveFilename (module.js:548:15)
    at Function.Module._load (module.js:475:25)
    at Function.Module.runMain (module.js:694:10)
    at startup (bootstrap_node.js:204:16)
    at bootstrap_node.js:625:3
[nodemon] app crashed - waiting for file changes before starting...
Terminate batch job (Y/N)?

这是json包

{
    "private": true,
    "scripts": {
        "dev": "npm run development",
        "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch": "npm run development -- --watch",
        "watch-poll": "npm run watch -- --watch-poll",
        "hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
        "prod": "npm run production",
        "production": "nodemon cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
    },
    "devDependencies": {
        "axios": "^0.18",
        "bootstrap": "^4.1.3",
        "cross-env": "^5.2.0",
        "jquery": "^3.2",
        "laravel-mix": "^2.0",
        "lodash": "^4.17.4",
        "popper.js": "^1.12",
        "pug": "^2.0.3",
        "pug-loader": "^2.4.0",
        "vue": "^2.5.7"
    },
    "dependencies": {
        "laravel-echo": "^1.4.0",
        "nodemon": "^1.18.4",
        "pusher-js": "^4.2.2",
        "urijs": "^1.19.1",
        "vue-content-loader": "^0.2.1",
        "vue-content-loading": "^1.5.3",
        "vue-filter": "^0.2.5",
        "vue-paginate": "^3.6.0",
        "vue2-autocomplete-js": "^0.2.2",
        "vuejs-auto-complete": "^0.7.0",
        "vuex": "^3.0.1",
        "vuex-i18n": "^1.10.5"
    }
}

我做错什么了？

Answer 1

这是文档。

您的脚本nodemon cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js 错了。

您将传递给nodemon文件cross-env。它不是文件，而是是命令。您应该将您的服务器文件(要启动的文件)传递给nodemon。

正确的脚本应该如下所示：cross-env NODE_ENV=production nodemon node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js

Answer 2

 "scripts": {
        "dev": "node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch": "node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch-poll": "node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --watch-poll --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "hot": "node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
        "prod": "npm run production",
        "production": "node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
    },