Angular 2和Angular 4依赖错误

Question

我上周在Angular从版本2开始，之后，我在Angular 4和AngularFire 2 v4中安装了项目的依赖项，但我不喜欢AngularFire2 v4的文档，我决定返回到在Angular 2中创建一个新项目，但package.json创建所有与Angular 4的依赖项，我如何才能更改在Angular 2和AngularFire2中创建新项目的依赖项？

当我使用angular/cli创建新项目时，这是我的package.json：

{
  "name": "test-angular2",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^4.0.0",
    "@angular/compiler": "^4.0.0",
    "@angular/core": "^4.0.0",
    "@angular/forms": "^4.0.0",
    "@angular/http": "^4.0.0",
    "@angular/platform-browser": "^4.0.0",
    "@angular/platform-browser-dynamic": "^4.0.0",
    "@angular/router": "^4.0.0",
    "angularfire2": "^4.0.0-rc.0",
    "core-js": "^2.4.1",
    "firebase": "^3.9.0",
    "rxjs": "^5.1.0",
    "zone.js": "^0.8.4"
  },
  "devDependencies": {
    "@angular/cli": "1.0.3",
    "@angular/compiler-cli": "^4.0.0",
    "@types/jasmine": "2.5.38",
    "@types/node": "~6.0.60",
    "codelyzer": "~2.0.0",
    "jasmine-core": "~2.5.2",
    "jasmine-spec-reporter": "~3.2.0",
    "karma": "~1.4.1",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "karma-coverage-istanbul-reporter": "^0.2.0",
    "protractor": "~5.1.0",
    "ts-node": "~2.0.0",
    "tslint": "~4.5.0",
    "typescript": "~2.2.0"
  }
}

有没有可能用这个创建Angular 2项目？或者我怎样才能回到以前的版本？谢谢!

Answer 1

将所有angular包版本更改为^2.4.0

"@angular/common": "^2.4.0",
    "@angular/compiler": "^2.4.0",
    "@angular/core": "^2.4.0",
    "@angular/forms": "^2.4.0",
    "@angular/http": "^2.4.0",
    "@angular/platform-browser": "^2.4.0",
    "@angular/platform-browser-dynamic": "^2.4.0",
    "
 "@angular/compiler-cli": "^2.4.0",

对以下对象执行相同的操作：

angular路由器到^3.4.0

将fire2更改为2.0.0-beta.8