当我尝试运行我的 angular 项目时，我的浏览器上出现“无法访问此站点”

Question

I have installed Angular 13 on my system and I am not able to view its output on my chrome or in any browser. Getting "This site can't be reached" error. I am new to angular. Can anyone help me with that one?

Angular CLI: 13.3.9
Node: 14.15.0
Package Manager: npm 6.14.8
OS: Linux x64

Angular: 13.3.11
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1303.9
@angular-devkit/build-angular   13.3.9
@angular-devkit/core            13.3.9
@angular-devkit/schematics      13.3.9
@angular/cli                    13.3.9
@schematics/angular             13.3.9
rxjs                            7.5.6
typescript                      4.6.4

And the package JSON file is this.

{
  "name": "my-app",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "watch": "ng build --watch --configuration development",
    "test": "ng test"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~13.3.0",
    "@angular/common": "~13.3.0",
    "@angular/compiler": "~13.3.0",
    "@angular/core": "~13.3.0",
    "@angular/forms": "~13.3.0",
    "@angular/platform-browser": "~13.3.0",
    "@angular/platform-browser-dynamic": "~13.3.0",
    "@angular/router": "~13.3.0",
    "rxjs": "~7.5.0",
    "tslib": "^2.3.0",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~13.3.9",
    "@angular/cli": "~13.3.9",
    "@angular/compiler-cli": "~13.3.0",
    "@types/jasmine": "~3.10.0",
    "@types/node": "^12.11.1",
    "jasmine-core": "~4.0.0",
    "karma": "~6.3.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.1.0",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "~1.7.0",
    "typescript": "~4.6.2"
  }
}

And on the browser console, I am getting this warning.

crbug/1173575, non-JS module files deprecated.
(anonymous) @ (index):6774

Answer 1

Maybe try to clear your history, cookies, and cache. Then delete the node_modules folder and run yarn install or npm install and then run ng serve --open . The --open option automatically opens your browser to http://localhost:4200/ .