title: Error connection refused while starting angular project
body: <p>Someday I was creating projects in Angular 4 and I want to do this again but on a newer version of Angular. </p>
  
  <p>What I did:</p>
  
  <p>1.) Installation of Visual Studio Code.</p>
  
  <p>2.) Installation of Nodejs:
  Node version is 10.15.1
  Npm version is 6.4.1</p>
  
  <p>3.) Installation of Angular CLI by "npm install -g @angular/cli" commend.</p>
  
  <p>4.) I created new project by cmd and build him by ng serve. After all I launch him by localhost:4200 in my browser - everything was great.</p>
  
  <p>5.) Installation of Debugger for Chrome.</p>
  
  <p>6.) Changing default port from 8080 to 4200.</p>
  
  <p>7.) Launching the project and I am getting ERR_CONNECTION_REFUSED.</p>
  
  <p>I tried also launch project on default port (4200) - the same situation (error connection).</p>
  
  <p>What did I wrong? I forgot about something or I don't know something important?
  I don't have any warnings or errors in console/logs.
  What I should do, to have my project in Chrome browser under localhost:PORT? </p>