title: Unauthenticated access is not supported for this identity pool
body: <p>Error is:
  <strong>com.amazonaws.services.cognitoidentity.model.NotAuthorizedException: Unauthenticated access is not supported for this identity pool. (Service: AmazonCognitoIdentity; Status Code: 400; Error Code: NotAuthorizedException;</strong></p>
  
  <p>Please Help me out here. 
  The process of signin was successful and when i enter Amazon lex chat bot window, I get the above error  <strong>Unauthenticated access is not supported for this identity pool.</strong> This actually makes sense because i have unchecked unauthenticated access to my bot so i know that without authentication no user will be allowed to interact with the Lex ChatBot. But now my signin is successful and still i have this error.</p>
  
  <p>My question is do we need to maintain the user session who has signed in?? If yes how do i do that.</p>
  
  <p>Or</p>
  
  <p>How do i link Login to  Cognito Authenticated Identity.</p>