node.js webpack-dev-server 找不到模块“webpack”
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webpack-dev-server Cannot find module 'webpack'
提问by yonBav
I'm trying to use webpack-dev-server to run a simple program but I'm getting this error:
我正在尝试使用 webpack-dev-server 来运行一个简单的程序，但出现此错误：
module.js:471
throw err;
^
Error: Cannot find module 'webpack'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object.<anonymous>
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
I have installed webpack with following npm command
我已经使用以下 npm 命令安装了 webpack
npm install --save-dev webpack
and I have the following configuration:
我有以下配置：
(webpack.config.js)
var webpack = require('webpack');
var path = require('path');
var BUILD_DIR = path.resolve(__dirname, 'client/public');
var APP_DIR = path.resolve(__dirname, 'client/app');
var config = {
entery: APP_DIR + '/index.js',
output: {
path: BUILD_DIR,
filename: 'bundle,js',
},
module: {
loaders: [
{
test: /.jsx?$/,
loader: 'babel-loader',
exclude: /node_modules/,
query: {
presets: ['es2015', 'react']
}
}
]
}
};
module.exports = config;
I have tried everything and I'm really lost. Does anyone have any idea?
我已经尝试了一切，但我真的很迷茫。有谁有想法吗？
回答by Abdennour TOUMI
npm install --save-dev webpackis not enough.
npm install --save-dev webpack是不足够的。
You have to install also the following:
您还必须安装以下内容：
npm install --save-dev webpack-dev-server
And optionally, you can install also :
并且可选地，您还可以安装：
npm install --save-dev webpack-dev-middleware webpack-hot-middleware
回答by Hùng Ng Vi
I had the same problem, but I resolved by installing additional webpack-cli
我有同样的问题，但我通过安装其他解决方案 webpack-cli
npm install --save-dev webpack-cli
