Webpack-dev-server not bundling even after showing bundle valid message

Question

I've set up a basic react application with webpack but I couldn't get the webpack-dev-server running properly.

I've installed webpack-dev-server globally and tried running the command sudo webpack-dev-server --hot as hot reloading was required.

The project seems to be working fine with just webpack cmd. It builds into my build folder and I can get it working via some server but it wont work with webpack-dev-server. From terminal its clear that the build process has completed with no error being thrown [webpack: bundle is now VALID.] and its in fact watching properly because on any change it does trigger the build process but it doesn't really gets built [it doesn't serve my bundle.js]. I tried changing the entire config and still couldn't get the issue resolved.

It would be much appreciated if someone can help.

Following is my webpack.config.js file.

var path = require('path');

module.exports = {
    devtool: '#inline-source-map"',

    watch: true,
    colors: true,
    progress: true,

    module: {
        loaders: [{
            loader: "babel",
            include: [
                path.resolve(__dirname, "src"),
            ],
            test: /\.jsx?$/,
            query: {
                plugins: ['transform-runtime'],
                presets: ['es2015', 'react', 'stage-0'],
            }
        }, {
            loader: 'style!css!sass',
            include: path.join(__dirname, 'src'),
            test: /\.scss$/
        }]
    },

    plugins: [],
    output: {
        path: path.join(__dirname, 'build/js'),
        publicPath: '/build/',
        filename: '[name].js'
    },
    entry: {
        bundle: [
            './src/index.js'
        ]
    },

    devServer: {
        contentBase: "./",
        inline: true,
        port: 8080
    },
};

Answer 1

I've got the issue resolved by myself. Silly as it sounds but the issue was with the publicPath under the output object. It should match the path property instead of just /build/, i.e.,

output: {
    path: path.join(__dirname, 'build/js'),
    publicPath: '/build/js', // instead of publicPath: '/build/' 
    filename: '[name].js'
},