Site cannot be reached on port 9000

[steveareeno]

I am trying to run this app in visual studio code but I am getting "this site cannot be reached" when using port 9000,

Config:
Windows 10 Enterprise, build 19044.1645

Angular CLI: 13.0.4
Node: 16.14.2
Package Manager: npm 6.14.5
OS: win32 x64

Angular: 13.0.3
... animations, cdk, common, compiler, compiler-cli, core, forms
... language-service, material, material-moment-adapter
... platform-browser, platform-browser-dynamic, router

@angular-devkit/architect (0.1300.4)
@angular-devkit/build-angular (13.0.4)
@angular-devkit/core (13.0.4)
@angular-devkit/schematics (13.0.4)
@angular/cli (13.0.4)
@schematics/angular (13.0.4)
rxjs (6.5.4)
typescript (4.4.4)

When I find all the instances of port 9000 and change it to 4200, the application runs but I cannot hit the courses api. I get a 404 error. Also, when I run it under port 9000 using "npm start", the command line shows:

** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **

Any help is appreciated.

[steveareeno]

I figured it out. I put everything back to port 9000. I have to run "npm run server" to start the server, then run "npm start" in a separate terminal to start the application. I missed the first step