我正在运行带有Aurelia前端-SPA的asp.net core 2.2。
我已经在Core 3.0中运行了它，但是我不得不降低运行OData的速度（他们还没有将OData放入该版本中）。
我已经打开CMD并键入npm run webpack:watch并失败了，所以我在SO中查找了错误的第一行并得到了this，但是可惜这不是语法问题-我有权利语法。
（已安装webpack，版本为4.38.0）
详细错误：
TypeError: CleanWebpackPlugin is not a constructor
at module.exports (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\webpack.config.js:73:4)
at handleFunction (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\utils\prepareOptions.js:21:13)
at prepareOptions (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\utils\prepareOptions.js:9:5)
at requireConfig (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\utils\convert-argv.js:119:14)
at C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\utils\convert-argv.js:125:17
at Array.forEach (<anonymous>)
at module.exports (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\utils\convert-argv.js:123:15)
at C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\cli.js:71:45
at Object.parse (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\node_modules\yargs\yargs.js:567:18)
at C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\cli.js:49:8
at Object.<anonymous> (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack-cli\bin\cli.js:365:3)
at Module._compile (internal/modules/cjs/loader.js:759:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:770:10)
at Module.load (internal/modules/cjs/loader.js:628:32)
at Function.Module._load (internal/modules/cjs/loader.js:555:12)
at Module.require (internal/modules/cjs/loader.js:666:19)
at require (internal/modules/cjs/helpers.js:16:16)
at Object.<anonymous> (C:\AURELIA\5 - ODATA\OLD\JobsLedger.API\node_modules\webpack\bin\webpack.js:156:2)
at Module._compile (internal/modules/cjs/loader.js:759:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:770:10)
at Module.load (internal/modules/cjs/loader.js:628:32)
at Function.Module._load (internal/modules/cjs/loader.js:555:12)
at Function.Module.runMain (internal/modules/cjs/loader.js:826:10)
at internal/main/run_main_module.js:17:11
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Jobsledger.API@0.0.0 webpack:watch: `webpack --mode development --watch`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the Jobsledger.API@0.0.0 webpack:watch script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\simon\AppData\Roaming\npm-cache\_logs\2019-07-30T07_45_40_798Z-debug.log
这与我的webpack文件有关，因为它抱怨CleanWebPackPlugin is not a constructor，但是在检查语法正确后，它必须是其他内容。
为完整起见，这里是webpack.config.js文件：
const path = require("path");
const webpack = require("webpack");
const { AureliaPlugin, ModuleDependenciesPlugin, GlobDependenciesPlugin } = require("aurelia-webpack-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CleanWebpackPlugin = require("clean-webpack-plugin");
const bundleOutputDir = "./wwwroot/dist";
module.exports = (env, argv) => {
if ((!argv || !argv.mode) && process.env.ASPNETCORE_ENVIRONMENT === "Development") {
argv = { mode: "development" };
}
console.log("mode =", argv.mode);
const isDevBuild = argv.mode !== "production";
const cssLoaders = ["css-loader", "postcss-loader"];
const scssLoaders = [...cssLoaders, "sass-loader"];
return [{
target: "web",
mode: isDevBuild ? "development" : "production",
entry: { "app": ["es6-promise/auto", "aurelia-bootstrapper"] },
resolve: {
extensions: [".ts", ".js"],
modules: ["ClientApp", "node_modules"]
},
output: {
path: path.resolve(bundleOutputDir),
// Asp.Net JavaScriptServices does not tolerate "/" in public path, see https://github.com/aspnet/JavaScriptServices/issues/1495
publicPath: "dist/",
filename: "[name].[hash].js",
chunkFilename: "[name].[chunkhash].js",
pathinfo: false
},
module: {
rules: [
{ test: /\.(woff|woff2|png|eot|ttf|svg)(\?|$)/, use: { loader: "url-loader", options: { limit: 1, publicPath: "./" } } },
{ test: /\.ts$/i, include: [/ClientApp/], loader: "ts-loader" },
{ test: /\.html$/i, use: "html-loader" },
{ test: /\.css$/i, /*include: [/node_modules/],*/ issuer: /\.html$/i, use: cssLoaders },
{ test: /\.css$/i, /*include: [/node_modules/],*/ exclude: [/bootstrap.css$/, /font-awesome.css$/], issuer: [{ not: [{ test: /\.html$/i }] }], use: ["style-loader", ...cssLoaders] },
{ test: /\.css$/, include: [/bootstrap.css$/, /font-awesome.css$/], use: [{ loader: MiniCssExtractPlugin.loader }, ...cssLoaders] },
{ test: /\.scss$/i, issuer: /(\.html|empty-entry\.js)$/i, use: scssLoaders },
{ test: /\.scss$/i, issuer: /\.ts$/i, use: ["style-loader", ...scssLoaders] }
]
},
optimization: {
splitChunks: {
chunks: "all",
// comment the following to avoid creatin a separate bundle for each npm module
maxInitialRequests: Infinity,
minSize: 0,
cacheGroups: {
vendor: {
test: /[\\/]node_modules[\\/]/,
name(module) {
// get the name. E.g. node_modules/packageName/not/this/part.js
// or node_modules/packageName
const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];
// npm package names are URL-safe, but some servers don't like @ symbols
return `npm.${packageName.replace('@', '')}`;
}
}
}
}
},
devtool: isDevBuild ? "source-map" : false,
performance: {
hints: false
},
plugins: [
new CleanWebpackPlugin(),
new webpack.DefinePlugin({ IS_DEV_BUILD: JSON.stringify(isDevBuild) }),
new webpack.ProvidePlugin({ $: "jquery", jQuery: "jquery", "window.jQuery": "jquery" }),
new HtmlWebpackPlugin({ template: 'index.ejs', filename: "../../wwwroot/index.html", inject: false, metadata: {}, alwaysWriteToDisk: true }),
new AureliaPlugin({ aureliaApp: "boot" }),
new GlobDependenciesPlugin({ "boot": ["ClientApp/**/*.{ts,html}"] }),
new ModuleDependenciesPlugin({}),
new MiniCssExtractPlugin({
filename: "[name].[hash].css",
chunkFilename: "[name].[chunkhash].css"
})
],
devServer: {
contentBase: "wwwroot/",
compress: true,
writeToDisk: true,
hot: false
}
}];
};
有什么想法吗？
答案 0 :(得分：3)
尝试更改为
const { CleanWebpackPlugin } = require('clean-webpack-plugin');