error Response

Article
05/23/2014

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Contains diagnostic error information when the server failed to process a request.

Syntax

<error code="integer value" subCode="integer value" reason="string value" detail="string value">
</error>

Attributes

Attribute	Data Type	Description
Code	integer	Communicator Web Access Server error code.
SubCode	integer	Communicator Web Access Server subcode
Reason	string	Describes the condition that can give unexpected results.
Detail	string	Descriptive error message.

Element Information

Parent Elements

Element	Description
cwaResponses Element	Holds the synchronous response to an HTTP POST request carried over through a command channel. It is used to inform the client of the initial status of a request.
requestFailed Element	Contains diagnostic error information when the server failed to process a request.
requestInvalid Element	The request contained elements that were unrecognized by the Communicator Web Access Server

Child Elements

Element	Occurrence	Description
sipResponse Element	0 or more	Indicates SIP-related errors.
stackTrace Element	0 or more	A detailed trace of the call stack of CWA. To receive the stackTrace element, debug must be enabled in the initiateSession request.

Examples

In the following example, debug has been enabled in initiateSession. The error element contains stack trace information.

Example 1:

Request failed event.

<requestFailed eid="102" rid="6">
   <error code="18201" reason="Operation failed" detail="The requested operation failed.">
       <sipResponse code="485" reason="Duplicate group name">
           <ms-diagnostics>errorId="2";reason="Unknown
             Failure";source="red-lsapf-
             02.exchange.corp.microsoft.com";
             AppUri=http://www.microsoft.com/LCS/UserServices
           </ms-diagnostics>
       </sipResponse>
       <stackTrace> ... </stackTrace>
    </error>
 </requestFailed>

Example 2:

Polling failure event.

<cwaResponses requestProcessed="0">
   <error code="18100" reason="Session not found" subCode="2"
       detail="Sign-in to OCS failed"/>
       <stackTrace>
         at Microsoft.Rtc.Signaling.SipAsyncResult.ThrowIfFailed()
         at Microsoft.Rtc.Signaling.Helper.EndAsyncOperation[T]
         (Object owner, IAsyncResult asyncResult)
         at Microsoft.Rtc.Signaling.SipEndpoint.
         EndRegister(IAsyncResult result)
         at Microsoft.Rtc.Internal.Collaboration
         .CollaborationEndpoint.SipEndpoint_RegistrationComplete
         (IAsyncResult asyncResult)
       </stackTrace>
    </error>
 </cwaResponses>

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