I just started learning how to work on sencha architect, and I'm following this tutorial http://docs.sencha.com/architect/2/#...st_desktop_app. It all seems easy, but I faced a problem. When I want to preview my project on the browser, the browsers give me a message that it could not connect to localhost, I tried other ports, 8080,9090.. nothing worked. What's the problem? Should I change the port being used from a certain location?