title: CAS authentication SAML error
body: <p>I am using CAS authentication in one of my applications. CAS version jar is - cas-client-core-3.1.10.jar. While using my correct credentials it gives me the following exception - </p>
  
  <pre><code>org.jasig.cas.client.validation.TicketValidationException: No valid assertions from the SAML response found.
  org.jasig.cas.client.validation.TicketValidationException: No valid assertions from the SAML response found.
  at org.jasig.cas.client.validation.Saml11TicketValidator.parseResponseFromServer(Saml11TicketValidator.java:97)
  at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
  </code></pre>
  
  <p>Wondering what is the reason for this exception? While checking for the source of the Saml11TicketValidator.java I did not see the exact scenario in which this error message comes. 
  Any idea what this message indicates?</p>