OS: Windows 10 Enterprise
Browser: Chrome latest version

I am trying to create a demo application using ExtAngular. I am following the steps given in page


Its working fine till step 3 in the above mentioned URL. But, when I am trying to run the command given in step 4 i.e.

ext-angular-gen app -a

Its giving error like "'ext-angular-gen' is not recognized as an internal or external command, operable program or batch file."

I need to show this demo to our upper stack holders in our company.

I need your support here to run the demo application on my system so that I can present it.