这个问题由于 Angular 14 Universal 编译器使用了 EventTarget 对象，但是它在服务器端的 JavaScript 环境中不可用，因此导致了 ReferenceError。

要解决这个问题，可以在服务器端引入 polyfills 来提供缺失的事件对象。具体实现步骤如下：

1. 安装 npm 包:

npm install --save-dev @angular-builders/custom-webpack
npm install --save-prod xhr2 bufferutil utf-8-validate

2. 创建一个新的 polyfills.ts 文件:

import 'reflect-metadata';
import 'zone.js/dist/zone-node';

import * as domino from 'domino';
import { TextEncoder, TextDecoder } from 'util';

(global as any).window = domino.createWindow('').defaultView;
(global as any).document = (global as any).window.document;
(global as any).navigator = (global as any).window.navigator;
(global as any).Event = global.window.Event;
(global as any).EventTarget = (global as any).window.EventTarget;

if(!global.window){
  (global as any).window = {} as Window;
}
Object.defineProperty(global, 'CSS', {value:null});
Object.defineProperty(global, 'getComputedStyle', {value: () => {
  return {
    getPropertyValue: () => {
      return '';
    }
  };
}});
Object.defineProperty(global.document.body.style, 'transform', {
  value: () =>{
    return {
      enumerable: true,
      configurable: true
    };
  },
});
(global as any).XMLHttpRequest = require('xhr2');
(global as any).WebSocket = require('ws');
(global as any).TextEncoder = TextEncoder;
(global as any).TextDecoder = TextDecoder;
(global as any).HTMLElement = (global as any).window.HTMLElement;
(global as any).MessageEvent = (global as any).window.MessageEvent;
(global as any).KeyboardEvent = (global as any).window.KeyboardEvent;
(global as any).Event = (global as any).window.Event;

3. 配置 webpack:

const webpack = require('webpack');

module.exports = {
  entry: './server.ts',
  target: 'node',
  resolve: { extensions: ['.ts', '.js'] },
  output: {
    path: __dirname + '/dist',
    filename: 'server.js'
  },
  module: {
    rules: [
      { test: /\.ts$/, loader: 'ts-loader' }
    ]
  },
  plugins: [
    new webpack.ContextReplacementPlugin(
      /(.+)?angular(\\|\/)core(.+)?/,