First make sure you have installed node.js 8.X and npm 5.X version. You can check it on own terminal window simply by entering node -v and npm -v . You can also download latest nodeJs from here.
$ npm -v$ node -v
Make sure you have installed latest angular-cli at least 1.6.X. You can check angular-cli version in terminal with ng -v command . If you need more info how to setup angular4 project please follow “angular official website” at there official websites.
Download Required dependencies from links provided below .