Invalid NEST response built from a unsuccessful low level call on PUT: /indexname

Hi Friends,
I am new to learning elastic search.I am creating a sample application with elasticsearch using c# MVC.When I am create the index getting the response "Invalid NEST response built from a unsuccessful low level call on PUT: /indexname" .Please help me to solve this issue.

Thank you.
//Jansy

Hey @Jansy, could you provide more information? The response type has a DebugInformation property on it that should provide more details, including an server error and exception.