小编abr*_*rsh的帖子

发生未处理的异常：工作区中未设置配置“es5”。

当客户希望项目在 Internet Explorer 8 上运行时，问题就开始了。幸运的是，新的 angular 8 提供了差异加载。

根据angular的文档（https://angular.io/guide/deployment#differential-loading），我将es5 JSON添加到angular.json然后我尝试使用'ng serve --configuration es5'提供服务

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "sm": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {
        "@schematics/angular:component": {
          "style": "sass"
        }
      },
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/Forex-Lottery-Front-End",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.app.json",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "./node_modules/font-awesome/scss/font-awesome.scss",
              "./node_modules/bootstrap/dist/css/bootstrap.css",
              "./node_modules/bootstrap/dist/css/bootstrap.min.css",
              "src/scss/styles.scss"
            ],
            "scripts": [
              "./node_modules/jquery/dist/jquery.js"
            ],
            "es5BrowserSupport": true
          }, …