CRM Dynamics 2011 : ID3011: Unrecognized RequestType specified: 'http://schemas.xmlsoap.org/ws/2005/02/trust/Issue'

Problem:

You have downloaded a CRM Dynamics 2011 sample and by running the code you get this error: ID3011: Unrecognized RequestType specified: 'http://schemas.xmlsoap.org/ws/2005/02/trust/Issue'

Solution

The sample code is referencing the older versions of SDK dlls. Remove "microsoft.crm.sdk.proxy" and "microsoft.xrm.sdk" and add references to the latest SDK dlls.