webpack-找不到模块：错误：无法解析'jquery'

Question

I'm using Sails 1 with webpack and when I attempt to import jquery from my main js file, I get this error yelling that it can't resolve jquery.

webpack.config.js:

var path = require('path');
var webpack = require('webpack');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var CleanWebpackPlugin = require('clean-webpack-plugin');
var CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports.webpack = {

    devtool: 'source-map',
    entry: {
        'admin': './assets/admin/js/admin.js'
    },
    output: {
        filename: 'js/[name].bundle.js',
        path: path.resolve(__dirname, '..', '.tmp', 'public')
    },
    resolve: {
        modules: [
            path.join(__dirname, "js"), "node_modules"
        ]
    },
    module: {
        // Extract less files
        rules: [{
            test: /\.css$/,
            loader: ExtractTextPlugin.extract({ use: 'css-loader' })
        }, {
            test: /\.less$/,
            loader: ExtractTextPlugin.extract({ use: 'css-loader!less-loader' })
        }, {
            test: /\.js$/,
            exclude: /node_modules/,
            loader: 'babel-loader',
            options: { 
                presets: [ 
                    [ 'es2015', { modules: false } ] 
                ] 
            }
        }]
    },
    plugins: [

        new webpack.ProvidePlugin({
            $: 'jquery',
            jQuery: 'jquery'
        }),
        // This plugin extracts CSS that was imported into .js files, and bundles
        // it into separate .css files.  The filename is based on the name of the
        // .js file that the CSS was imported into.
        new ExtractTextPlugin('css/[name].bundle.css'),

        // This plugin cleans out your .tmp/public folder before lifting.
        new CleanWebpackPlugin(['public'], {
            root: path.resolve(__dirname, '..', '.tmp'),
            verbose: true,
            dry: false
        }),

        // This plugin copies the `images` and `fonts` folders into
        // the .tmp/public folder.  You can add any other static asset
        // folders to this list and they'll be copied as well.
        new CopyWebpackPlugin([{
            from: './assets/images',
            to: path.resolve(__dirname, '..', '.tmp', 'public', 'images')
        }])
    ]
};

and in my assets/admin/js/admin.js I only have

import 'jquery';

jquery is on my package json and it shows up under my node_modules packages with the name jquery .

Another weird thing is that if I change jquery and attempt to import angular , it works perfectly, so I don't think it's a node_modules directory issue or something like that.

Answer 1

A different issue brought me here. For future visitors coming from Google, try running:

webpack --display-error-details