My first simple sharepoint hosted app not displaying correctly

Question

1. I have configured app environment successfully as described in this article
2. I have created simple sharepoint hosted app in visual studio and deployed successfully on my sharepoint server 2013.
3. But app is not displaying correctly ie. without sharepoint styling. when i open developer tool then there are lots of errors. see below screen shots.

App user interface:

Errors on app page:

I want app interface something like below :

Should i need to configure something in my app? please help. Thank you.

Answer 1

Try to create a root site collection for the same web application like this : http://webapp:1001/ from Central Administration then refresh your page or re-deploy your app.