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我使用 Angular 8、Angular Universe、ngx-bootstrap 设置服务器端渲染，但出现错误

错误 ReferenceError: 文档未定义在 ModalContainerComponent.ngOnInit (/Users/user/project/dist/server.js:243925:9) 在 checkAndUpdateDirectiveInline (/Users/user/project/dist/server.js:23530:19) 在checkAndUpdateNodeInline (/Users/user/project/dist/server.js:31788:20) 在 checkAndUpdateNode (/Users/user/project/dist/server.js:31750:16) 在 prodCheckAndUpdateNode (/Users/user/project/dist /server.js:32291:5) 在 Object.updateDirectives (/Users/user/project/dist/server.js:137344:457) 在 Object.updateDirectives (/Users/user/project//server.js:32079: 72) 在 Object.checkAndUpdateView (/Users/user/project//server.js:31732:14) 在 ViewRef_.detectChanges (/Users/user/project//server.js:23119:22) 在 ComponentLoader.show (/用户/用户/项目//server.js:241722:50)

我试图在我的服务器文件中使用多米诺骨牌，但它没有帮助

"dependencies": {
    "@angular/animations": "^8.0.0",
    "@angular/cdk": "^8.0.0",
    "@angular/common": "^8.0.0",
    "@angular/compiler": "^8.0.0",
    "@angular/core": "^8.0.0",
    "@angular/forms": "^8.0.0",
    "@angular/material": "^8.0.0",
    "@angular/platform-browser": "^8.0.0",
    "@angular/platform-browser-dynamic": "^8.0.0",
    "@angular/platform-server": "^8.0.0",
    "@angular/router": "^8.0.0",
    "@nguniversal/express-engine": "^7.0.2",
    "@nguniversal/module-map-ngfactory-loader": "v7.0.2",
    "@ngx-translate/core": "^10.0.2",
    "@ngx-translate/http-loader": "^3.0.1",
    "@types/lodash": "4.14.108",
    "angular-font-awesome": "3.1.2",
    "bootstrap": "4.1.3",
    "core-js": "^2.4.1",
    "express": "^4.15.2",
    "font-awesome": "4.7.0",
    "lodash": "4.17.4",
    "moment": "2.22.2",
    "ng-recaptcha": "4.2.1",
    "ngx-bootstrap": "5.0.0",
    "rxjs": "^6.5.2",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "8.0.2",
    "@angular/compiler-cli": "^8.0.0",
    "@angular/language-service": "^8.0.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "^6.0.60",
    "codelyzer": "^5.0.1",
    "gulp": "^3.9.1",
    "gulp-sass": "^4.0.1",
    "gulp-watch": "^5.0.0",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "^2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-loader": "^5.2.0",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "tslint-sonarts": "^1.9.0",
    "typescript": "~3.4.5",
    "webpack-bundle-analyzer": "^3.3.2",
    "webpack-cli": "^3.1.0"
  }

服务器.ts

import 'zone.js/dist/zone-node';
import 'reflect-metadata';
import {enableProdMode} from '@angular/core';
// Express Engine
import {ngExpressEngine} from '@nguniversal/express-engine';
// Import module map for lazy loading
import {provideModuleMap} from '@nguniversal/module-map-ngfactory-loader';

import * as express from 'express';
import {join} from 'path';

// Faster server renders w/ Prod mode (dev mode never needed)
enableProdMode();

// Express server
const app = express();

const PORT = process.env.PORT || 4000;
const DIST_FOLDER = join(process.cwd(), 'dist/browser');

// * NOTE :: leave this as require() since this file is built Dynamically from webpack
const {AppServerModuleNgFactory, LAZY_MODULE_MAP} = require('./dist/server/main');

// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
app.engine('html', ngExpressEngine({
  bootstrap: AppServerModuleNgFactory,
  providers: [
    provideModuleMap(LAZY_MODULE_MAP)
  ]
}));

app.set('view engine', 'html');
app.set('views', DIST_FOLDER);

// Example Express Rest API endpoints
// app.get('/api/**', (req, res) => { });
// Server static files from /browser
app.get('*.*', express.static(DIST_FOLDER, {
  maxAge: '1y'
}));

// All regular routes use the Universal engine
app.get('*', (req, res) => {
  res.render('index', { req });
});

// Start up the Node server
app.listen(PORT, () => {
  console.log(`Node Express server listening on http://localhost:${PORT}`);
});
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