Angular live development server is listening on localhost However, there may be instances where you need to modify this default port. 0:4200, open your browser on http://localhost:4201/ ** To find out your ip address, open your Windows Command Prompt via (Windows + R) and Apr 6, 2023 · Note that angular-persistence was last released in 2017, whereas Angular 15 only officially supports libraries that have been built using Angular 13 to 15. Not for production or any environment other than local dev. This could be due to conflicts with other processes, company policies, or simply personal preference. ng serve only executes the builder for the serve target in the default project as specified in angular. Sep 3, 2021 · In powershell I get 'angular live development server is listening on localhost:4200, open your browser on localhost:4200 ' running the app from visual studio, its on port 5001 Dec 9, 2024 · Angularは、モダンなシングルページアプリケーション（SPA）の開発を効率的に行うために、数多くの機能を提供する強力なフレームワークです。その中でも、Angular CLI（コマンドラインインターフェース）は、開発者が素早く効率的に作業を進めるために欠かせないツールです。 May 3, 2023 · Here's the error I observed: Error: node_modules/@angular/core/index. Now if you want to skip past having to open up the browser and type in localhost:4200 you can type in this command instead: ng serve –open This will start the server and then open the page automatically in the browser. json file. map (main) 60. Then, when I opened up a web browser, I navigated to localhost:4200 and a web page with the following text were shown: Feb 13, 2020 · Summary The ng serve development server and its live-reload function make it easy for you to see changes in your web app as you make them. Jul 10, 2020 · I am using ssh and vscode to remote development with angular. This will compile your application, skip unnecessary optimizations, start a devserver, and automatically rebuild and live reload any subsequent changes. json against angular ivy version May 31, 2019 · ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** i ｢wdm｣: Compiled successfully. json. 238. 7 zsh Node. 613Z - Hash: 2c73ac9786af94e810bc - Time: 10587ms ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** i ｢wdm｣: Compiled successfully. If you have been developing any Angular application you will come to a point when you need to serve it on localhost under HTTPS. Sep 18, 2023 · I run ng new AngularStarter I swap to the newly created AngularStarter directory I run ng serve It builds and then ends with: *chunk {main} main. 1. 1k 阅读 Sep 27, 2022 · In this article, we’ll learn how to access a local Angular app outside of localhost by making use of the Angular CLI’s — host flag. Nov 27, 2021 · ** Angular Live Development Server is listening on 0. js. Aug 15, 2023 · Introduction Angular, a popular platform for building web applications, by default runs its local development server on port 4200. The compiled application code needs to be loaded into the browser from a web server. js 15. 1 Oct 17, 2018 · I did ng serve on my Terminal with code opened in Visual Studio Code. image of localhost and web console Jan 6, 2020 · ng serve shows compilation successful but browser does not show angular app #16556 Jun 1, 2021 · I read the update instructions in Angular website to update version from 9 to 10 (because I can't from 9 to 11) and everything was fine until I typed ng serve in the terminal to launch the webapp a Oct 25, 2020 · エラー内容 Angular CLIでサーバーを立ち上げようとしたところ、 下記の様なエラーが出力され、日本語用の掲示板がなく、苦戦。 備忘録と日本語用の解決方法として記録する。 環境 Mac OS Catalina 10. 490Z - Hash: cb3427b3361a0ecb - Time: 23318ms ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** √ Compiled successfully. You can stop the server by pressing Ctrl+C. Sep 28, 2021 · I am creating a website with Angular on WSL2 Ubuntu running on a Windows 10 computer. 2, the following steps VSC created a local DEV I can F5 to launch swa emulator to run and debug both Angular and no Jun 18, 2021 · Hi The ng serve loads data outside its root folder: ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** Compiled successfully. I'd recommend to find an alternative for this dependency if it has gone unmaintained. Angular CLI have a built in command to serve the Jul 11, 2023 · check version compatibility of typescript (you can do it by refering your current angular version documentation) and all dependent packages used in your project from package. ** Angular Live Development Server is listening on localhost:3000 Mar 28, 2022 · Describe the bug My SWA project consists of Angular (v12) UI Integrated API (node v14) About a month ago downloaded v 0. Running the same from the folder C:\Users\ppete\Documents\DEV\Angular\test1 (Note: no "!" in there) results in correct operation: C:\Users\ppete\Documents\DEV\Angular\test1>ng serve --open ** NG Live Nov 7, 2025 · Find solutions and troubleshooting tips for starting an Angular project using ABP framework. When I launch the application with the ng serve command, I get ** Angular Live Development Server is listening on localhost:4200, open your browser on… Apr 25, 2023 · ** Angular Live Development Server is listening on localhost:4200, open your browser on https://localhost:4200/ ** Aug 25, 2020 · I'm getting the following error while accessing localhost where the angular development server is listening : enter image description here ng serve is running as below : Jan 22, 2024 · Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** I have tried with NPM @6 and node @12 and angular 9 run this app but same issue is throwing: Oct 17, 2017 · The reason this is crucial is that without it, the angular process is only listening on the localhost interface inside the container - so even with the docker port mapping, connections from outside the container aren't being received. Could you please Sep 5, 2019 · ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** I tried different browsers, tried reinstalling angular, still the problem persists. Sep 14, 2022 · Error: Failed to initialize Angular compilation - Cannot read properties of null (reading 'fileName') ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** × Failed to compile. While starting application by npm start getting the below error ** Angular Live Development Server is listening on localhost: 9000, o Builds and serves your application, rebuilding on file changes. Sep 10, 2019 · 🐞 Bug report Command (mark with an x) - [ ] new - [ ] build - [ x ] serve - [ ] test - [ ] e2e - [ ] generate - [ ] add - [ ] update - [ ] lint - [ ] xi18n Jun 13, 2018 · 3 " Angular doesn't render the page when I try start up the server " / " Only a blank page " If you have errors in your code, angular will show a blank page, even if it is compiling. Nov 30, 2021 · Angular Live Development Server is listening on localhost:4200, This may indicate it’s really only accepting connections from (the container’s) localhost? This is the default Angular App Page, and it’s used as a great starting point to begin to create an app. Solution: In this case, your problem is in: Nov 7, 2023 · Build at: 2023-11-07T14:56:41. ** Angular Live Development S Oct 10, 2017 · Tl;Dr the cli live server is only for local development. 0. src\styles. 0:4200, open your browser on url 原创 于 2022-08-23 16:38:17 发布 · 1. Oct 16, 2017 · '** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200 **'. Edit: is your computer on some kind of work vpn by any chance? Aug 18, 2019 · I saw port is filled with 4200 but no idea why the Angular Live Development Server text shows undefined. AggregateError Anyway, someone had posted an answer to that question there, which was what was eventually useful to me: Angular ng serve is not hosting site on localhost And to simplify it further, what ended up solving it for me specifically was: Oct 10, 2023 · ** Angular Live Development Server is listening on localhost:4200, open your browser on http:// localhost:4200/ ** Compiled successfully. 0:4200, open your brow Mar 4, 2024 · ** Angular Live Development Server is listening on localhost:3001, open your browser on http://localhost:3001/ ** But I am having problems with the host in React. Mar 16, 2017 · Using angular. js, main. This tutorial will guide you through the steps to modify the default port in Angular The web development framework for building modern apps. json under "scripts" we've "start" update it with below command so on each run of "npm start" it will serve on 5000. json, you will find below code and update port as you want like 5000. So how to serve your Angular app on localhost via HTTPS using self signed SSL certificate? Luckily there is an easy solution for this using Angular 6+ CLI and some small changes in your Chrome browser. How ng Mar 8, 2020 · new build serve test e2e generate add update lint xi18n run config help version doc Is this a regression? NO Description When using ng serve with the latest version of angular cli : ** Angular Live Development Server is listening on loca Sep 5, 2019 · Date: 2019-09-05T09:55:54. Another thing I observed is when the console showed Compiled successfully, it took a few seconds then the next 3 lines were printed, quite weird. While any builder Aug 29, 2025 · Accessing localhost:4200 Remotely If you need to share your development server with someone on a different network, tools like secure tunnels can help. All it takes to run multiple projects simultaneously is some tweak in the configuration. d. 12:3030/panel/. Jun 27, 2022 · 勉強がてらAngularでTodoアプリでも作ってみるか〜、、っと思ったときに少し詰まりました。 ng serveが見れない ng serveコマンドを実行後正常に起動しているのに、Chromeでlocalhost:4200を開くと開くことができません。 Oct 7, 2020 · The server process is listening on localhost:4200 ("Angular Live Development Server is listening on localhost:4200"). And i got output - ** NG Live Development Server is listening on localhost:4200, open your Mar 31, 2022 · The local development server has been compiled successfully however the localhost http://localhost:4200/ says This site can’t be reached, localhost refused to connect. . By forwarding traffic from a public URL to your local Angular server, you can test your app on mobile devices or share it with team members without being on the same network. 0 start I am in process migrating Angular 5 project to Angular 6. When I launch the application with the ng serve command, I get Angular Live Development Server is listening on localhost:4200, open your browser on… Sep 14, 2022 · Error: Emit Error: Failed to initialize Angular compilation - Cannot read properties of null (reading ‘fileName’) ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** × Failed to compile. Jun 17, 2017 · This is a bug, caused by the folder whose name starts with an exclamation mark in the path to the project: C:\Users\ppete\Documents\DEV\!Angular\test1 Note the !Angular folder in the middle. In the WSL server I am calling ng serve and I get Oct 1, 2023 · My Angular application is running in a docker container but is not accessible from the browser: I used port mapping as well: docker run -p 4200:4200 myhub/frontend Output: ** Angular Live Development Aug 27, 2018 · Hello, we reviewed this issue and determined that it doesn't fall into the bug report or feature request category. 0: ** Angular Live Development Server is listening on 0. Angular is an SPA framework. But if I wait for those 3 lines to be printed, then I can use localhost:4200 normally. 0:4200, open your browser on http://localhost:4200/ ** √ Compiled successfully. The configuration can be easily changed by either the command-line options or by updating the Angular config file. 8. It Doesn't provide any Information regarding which specific location is causing the issue. This strategy can be useful for cross-device testing of May 7, 2025 · On running ng serve command browser shows this: Error resolving "localhost:4200" ("") for "10. Learn how to configure Angular ng serve to allow external access securely. My server is a Windows Machine where WSL is running, and I am connecting to the WSL. 0": rpc error: code = Unknown desc = no such record Sorry If the Dec 23, 2021 · I am creating a website with Angular on WSL2 Ubuntu running on a Windows 10 computer. ts:5501:22 - error NG1010: Value ** Angular Live Development Server is listening on localhost:50302, open your browser on http://localhost:50302/ ** × Failed to compile. Aug 29, 2025 · When working with Angular, you’ve probably noticed that your development server often runs on localhost:4200. I reinstalled both angular and node. Browser application bundle generation complete. Where Live Server is physically Located in running machine Jan 26, 2024 · ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** × Failed to compile. This issue tracker is not suitable for support requests, please repost your issue on StackOverflow using tag angular. In package. If you are wondering why we don't resolve support issues via the issue tracker, please check out this explanation. Sep 27, 2016 · gyuho changed the title ng serve doesn't work with localhost:4200 ng serve doesn't listen other than localhost on Sep 27, 2016 Jul 6, 2021 · ** Angular Live Development Server is listening on localhost:3200, open your browser on http://localhost:3200/ ** Adding default port number in project’s angular. Nov 29, 2022 · Inside, it executes npm prestart, and npm start and at the end it shows the message Angular Live Development Server is listening on localhost:4200, open your browser on https://localhost:4200/. So any help to resolve this would be much appreciated. But what does this really mean, and why is it important for your development workflow? Nov 25, 2022 · Angular CLI - Auto launch browser on localhost after app start with ng serve This is a super quick tutorial to show how to automatically open the browser on localhost after starting an app with Angular CLI. The command fits into the Angular development workflow by providing a local server that complies with the application in memory allowing for quick testing and iteration without needing a full production build. Minimal Reproduction npm start cpam-angular-frontend@0. 8 kB [initial] [rendered] Jul 4, 2022 · ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** But if i go to open localhost:4200 i don't have any data: Aug 23, 2022 · Angular Live Development Server is listening on 0. Jul 23, 2025 · What is ng serve and How it Fits in the Angular CLI? The ng serve is a part of the Angular CLI a powerful tool that simplifies Angular development by automating common tasks. localhost inside of the container isn't the same as your PC's localhost. Angular CLI have a built in command to serve the You can serve your Angular CLI application with the ng serve command. I open the frontend correctly in the browser but there is no backend connection. I close the command prompt for the frontend. So you need to start checking errors in your browser's developer tools, and checking your code. Jan 22, 2023 · Enable public access to your Angular Dev Server in development mode. I installed node packages several time with the help of NPM install. To answer your specific questions: Being a Client Side Framework why angular needs an development server. 15. I should be able to connect to http://localhost:4200 and the page should display a welcome to test-angular page. Mar 17, 2020 · When running the global ng serve --host 0. How can I allow access outside the localhost at Angular2? I can navigate at localhost:3030/panel easily but I can not navigate when I write my IP such as 10. So let's start. 123. scss 67:1 root stylesheet ** Angular Live Development Server is listening on 0. 14. 0 everything works as expected seeing the web server bound to 0. json Search "serve" under that add field "options" as below: In node_modules > @angular-devkit > build-angular > src > dev-server > schema. zpbnsq lex wjea bhefh tuerp orp afk pdudgqp kdidr swiyp nje owbr vxyrgk pur sodnysg