Set up the Development Environment

You need to set up your development environment before you can start developing Angular Applications.
Install Node.js® and npm if they are not already on your machine.
Verify that you are running at least node 6.9.x and npm 3.x.x by running node -v and npm -v in a terminal/console window. Older versions produce errors, but newer versions are fine.
Then install the Angular CLI globally by running:
npm install -g @angular/cli

The Angular CLI

The Angular Command Line Interface (CLI) is a tool to initialize, develop, scaffold and maintain Angular applications. For more info about the Angular CLI visit
If you have an older versión of the CLI installed on your computer, make sure you properly update to the latest Angular CLI. See instructions here:

Install the project dependencies

Go to the folder you downloaded the project files, unzip it and open a terminal in that folder.
Then run npm install to install all the project dependencies.