在 package.json -> 依赖项数组中,将 Angular 版本更改为 2.4.1 并重建项目。
详细答案:-
1)使用Cli创建新项目。
ng new my-newapp
2)将目录更改为
cd my-newapp
3) 更新 package.json -> 依赖项。将 Angular 版本更改为 2.4.1,并将 Router 更改为 3.4.1
例子:-
{
"name": "my-newapp",
"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": "2.4.1",
"@angular/compiler": "2.4.1",
"@angular/compiler-cli": "2.4.1",
"@angular/core": "2.4.1",
"@angular/forms": "2.4.1",
"@angular/http": "2.4.1",
"@angular/platform-browser": "2.4.1",
"@angular/platform-browser-dynamic": "2.4.1",
"@angular/router": "3.4.1",
"@angular/upgrade": "2.4.1",
"@angular/material": "2.0.0-beta.0",
"bootstrap": "^3.3.7",
"concurrently": "^3.1.0",
"core-js": "^2.4.1",
"hammerjs": "^2.0.8",
"reflect-metadata": "^0.1.9",
"rxjs": "^5.0.2",
"systemjs": "^0.19.41",
"zone.js": "^0.7.4"
},
"devDependencies": {
"@angular/cli": "1.0.0",
"@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": "~2.0.0",
"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"
}
}
4)重新安装所有软件包(optional:- 在执行此命令之前,您可以删除节点模块文件夹)
npm install
5)启动浏览器
ng serve
注意:- 在我的系统中,当执行 ngserve 时我遇到了问题
ERROR in AppModule is not an NgModule
您可以通过向 app.module.ts 添加空行来解决此问题。