While doing some custom FIM Activity development, I came across an exception that I had never seen before, so I thought I'd throw up a quick entry so I don't forget what it meant.
It was the InvalidRepresentationException. Here is the stack trace:
Microsoft.ResourceManagement.WebServices.Exceptions.InvalidRepresentationException: Exception of type 'Microsoft.ResourceManagement.WebServices.Exceptions.InvalidRepresentationException' was thrown. at Microsoft.ResourceManagement.Utilities.ExceptionManager.ThrowException(Exception exception) at Microsoft.ResourceManagement.Data.Exception.DataAccessExceptionManager.ThrowException(SqlException innerException) at Microsoft.ResourceManagement.Data.DataAccess.ProcessRequest(RequestType request) at Microsoft.ResourceManagement.ActionProcessor.ActionDispatcher.ProcessInputRequest(RequestType request) at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteAction(RequestType request) at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteAction[ResponseBodyType](RequestType request) at Microsoft.ResourceManagement.WebServices.RequestDispatcher.DispatchRequest[ResponseBodyType](RequestType request, Guid requestIdentifier, Object redispatchSingleInstanceKey, Boolean isRedispatch) at Microsoft.ResourceManagement.WebServices.RequestDispatcher.DispatchRequest[ResponseBodyType](RequestType request) at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.DispatchRequest[TResponseType](RequestType request) at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.ProcessCreateWorkItem(CreateRequestWorkItem createWorkItem) at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.ProcessWorkItem(WorkItem workItem)
Turns out that you will get this error whenever you attempt to write to an attribute that is:
While in my situation, I came across it when negelected to include a CreateParameter for a required attribute, but I reckon you would also see this if you had a disconnect in an RCDC between what you are referencing and what is in the resource schema definition.
Anyway, if are reading this because you searched the web as I did and could find no other help, double check the spelling of the attributes you are referencing and their binds. I bet you'll find your problem there.