There was an unexpected error (type=Internal Server Error, status=500). Error resolving template "index", template might not exist or might not be accessible by any of the configured Template Resolvers
So I simply followed the instructions given here :https://pivotal.io/platform/pcf-tutorials/getting-started-with-pivotal-cloud-foundry/deploy-the-sample-app
I pushed the app successfully but when I put the route in my web browser, it gives me an error as shown in the screenshot. I haven't made any changes to the sample file I downloaded.