我正在尝试将sass连接到我的asp.net core2 / angular 5 Web应用程序。我试图合并scss（sass）文件而不是css。我认为设置似乎是正确的，但是当我运行应用程序时，我得到matchMedia错误。这是我的设置： webpack.config.js：
const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const AotPlugin = require('@ngtools/webpack').AotPlugin;
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const ExtractTextPlugin = require("extract-text-webpack-plugin");
module.exports = (env) => {
// Configuration in common to both client-side and server-side bundles
const isDevBuild = !(env && env.prod);
const sharedConfig = {
stats: {
modules: false
},
context: __dirname,
resolve: {
extensions: ['.js', '.ts']
},
output: {
filename: '[name].js',
publicPath: 'dist/' // Webpack dev middleware, if enabled, handles requests for this URL prefix
},
module: {
rules: [{
test: /\.ts$/,
use: isDevBuild ? ['awesome-typescript-loader?silent=true', 'angular2-template-loader', 'angular2-router-loader'] : '@ngtools/webpack'
},
{
test: /\.html$/,
use: 'html-loader?minimize=false'
},
{
test: /\.(css|scss)$/,
loaders: ['to-string-loader', 'css-loader', 'sass-loader']
},
{
test: /\.(png|jpg|jpeg|gif|svg)$/,
use: 'url-loader?limit=25000'
}
]
},
plugins: [new ExtractTextPlugin('css/[name].css'), new CheckerPlugin()]
};
// Configuration for client-side bundle suitable for running in browsers
const clientBundleOutputDir = './wwwroot/dist';
const clientBundleConfig = merge(sharedConfig, {
entry: {
'main-client': './ClientApp/boot.browser.ts'
},
output: {
path: path.join(__dirname, clientBundleOutputDir)
},
plugins: [
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
})
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin({
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
})
] : [
// Plugins that apply in production builds only
new webpack.optimize.UglifyJsPlugin(),
new AotPlugin({
tsConfigPath: './tsconfig.json',
entryModule: path.join(__dirname, 'ClientApp/app/app.browser.module#AppModule'),
exclude: ['./**/*.server.ts']
})
])
});
// Configuration for server-side (prerendering) bundle suitable for running in Node
const serverBundleConfig = merge(sharedConfig, {
resolve: {
mainFields: ['main']
},
entry: {
'main-server': './ClientApp/boot.server.ts'
},
plugins: [
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require('./ClientApp/dist/vendor-manifest.json'),
sourceType: 'commonjs2',
name: './vendor'
})
].concat(isDevBuild ? [] : [
// Plugins that apply in production builds only
new AotPlugin({
tsConfigPath: './tsconfig.json',
entryModule: path.join(__dirname, 'ClientApp/app/app.server.module#AppModule'),
exclude: ['./**/*.browser.ts']
})
]),
output: {
libraryTarget: 'commonjs',
path: path.join(__dirname, './ClientApp/dist')
},
target: 'node',
devtool: 'inline-source-map'
});
return [clientBundleConfig, serverBundleConfig];
};
这里是我使用matchMedia查询的地方： sidenav.component.ts：
import { Component, OnInit, NgZone } from '@angular/core';
const SMALL_WIDTH_BREAKPOINT = 720;
@Component({
selector: 'app-sidenav',
templateUrl: './sidenav.component.html',
styleUrls: ['./sidenav.component.scss']
})
export class SidenavComponent implements OnInit {
private mediaMatcher: MediaQueryList =
matchMedia(`(max-width: ${SMALL_WIDTH_BREAKPOINT}px)`);
constructor(zone: NgZone) {
this.mediaMatcher.addListener(mql =>
zone.run(() => this.mediaMatcher = mql));
}
ngOnInit() {
}
isScreenSmall(): boolean {
return this.mediaMatcher.matches;
}
}
的package.json：
{
"name": "myapp.Forms.API",
"private": true,
"version": "0.0.0",
"scripts": {
"test": "karma start ClientApp/test/karma.conf.js"
},
"devDependencies": {
"@angular/cdk": "^5.2.4",
"@angular/cli": "^1.7.3",
"@angular/compiler-cli": "^5.2.8",
"@angular/material": "^5.2.4",
"@ngtools/webpack": "^1.10.2",
"@types/chai": "^3.4.34",
"@types/jasmine": "^2.8.6",
"@types/node": "^7.0.56",
"angular-matchmedia": "^1.0.0",
"chai": "^3.5.0",
"codelyzer": "^3.0.0",
"css-loader": "^0.28.10",
"extract-text-webpack-plugin": "^3.0.2",
"istanbul-instrumenter-loader": "^3.0.0",
"jasmine-core": "^2.99.1",
"karma": "^1.7.1",
"karma-chai": "^0.1.0",
"karma-chrome-launcher": "^2.2.0",
"karma-coverage": "^1.1.1",
"karma-jasmine": "^1.1.1",
"karma-mocha-reporter": "^2.2.4",
"karma-phantomjs-launcher": "^1.0.4",
"karma-remap-coverage": "^0.1.4",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^2.0.13",
"node-sass": "^4.8.1",
"raw-loader": "^0.5.1",
"sass-loader": "^6.0.7",
"style-loader": "^0.18.2",
"tslint": "^5.7.0",
"webpack": "^3.11.0",
"webpack-bundle-analyzer": "^2.11.1"
},
"dependencies": {
"@angular/animations": "^5.2.8",
"@angular/common": "^5.2.8",
"@angular/compiler": "^5.2.8",
"@angular/core": "^5.2.8",
"@angular/flex-layout": "^5.0.0-beta.13",
"@angular/forms": "^5.2.8",
"@angular/http": "^5.2.8",
"@angular/platform-browser": "^5.2.8",
"@angular/platform-browser-dynamic": "^5.2.8",
"@angular/platform-server": "^5.2.8",
"@angular/router": "^5.2.8",
"@nguniversal/aspnetcore-engine": "^5.0.0-beta.5",
"@nguniversal/common": "^5.0.0-beta.5",
"@ngx-translate/core": "^8.0.0",
"@ngx-translate/http-loader": "^2.0.0",
"angular2-router-loader": "^0.3.5",
"angular2-template-loader": "^0.6.2",
"aspnet-prerendering": "^3.0.1",
"aspnet-webpack": "^2.0.1",
"awesome-typescript-loader": "^3.5.0",
"bootstrap": "^3.3.7",
"bootstrap-sass": "^3.3.7",
"core-js": "^2.5.1",
"css": "^2.2.1",
"es6-shim": "^0.35.3",
"event-source-polyfill": "^0.0.9",
"expose-loader": "^0.7.5",
"file-loader": "^0.11.2",
"hammerjs": "^2.0.8",
"html-loader": "^0.5.1",
"isomorphic-fetch": "^2.2.1",
"jquery": "^2.2.1",
"json-loader": "^0.5.7",
"moment": "2.18.1",
"ngx-bootstrap": "2.0.0-beta.6",
"npm": "^5.7.1",
"preboot": "^5.0.0",
"rimraf": "^2.6.2",
"rxjs": "^5.5.6",
"to-string-loader": "^1.1.5",
"typescript": "~2.5.0",
"url-loader": "^0.5.7",
"webpack-hot-middleware": "^2.21.2",
"webpack-merge": "^4.1.2",
"zone.js": "^0.8.17"
}
}
以下是我运行应用时遇到的错误：
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[0]
An unhandled exception has occurred while executing the request
Microsoft.AspNetCore.NodeServices.HostingModels.NodeInvocationException: matchMedia is not defined
ReferenceError: matchMedia is not defined
at new SidenavComponent (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\main-server.js:42199:9)
at createClass (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:12858:20)
at createDirectiveInstance (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:12703:37)
at createViewNodes (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14161:53)
at callViewAction (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14595:13)
at execComponentViewsAction (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14504:13)
at createViewNodes (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14189:5)
at createRootView (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14050:5)
at Object.createProdRootView [as createRootView] (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:14743:12)
at ComponentFactory_.module.exports.ComponentFactory_.create (C:\Users\user\Documents\Visual Studio 2017\Projects\myapp.Forms\myapp.forms.api\ClientApp\dist\vendor.js:11655:46)
at Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance.<InvokeExportAsync>d__7`1.MoveNext()
有关如何纠正的任何想法？