Workflow with id "xxxxx" not found in state persistence store.

Question

Hi

I have a workflow application which throws error when i try to invoke a event using ExternalDataExchangeService.

Workflow with id "866568ab-ca1b-4404-a2f1-2c8704539ef4" not found in state persistence store.

Event "QAEngOrTLReject" on interface type "RecipeChangeService.IRecipeChangeService" for instance id "866568ab-ca1b-4404-a2f1-2c8704539ef4" cannot be delivered.

Here is my implementation code for it - Please help I am stuck :(

Below is the interface and data exchange event args -

 
public class RecipeChangeService : IRecipeChangeService{
        #region IRecipeChangeService Members

        public event EventHandler QAEngOrTLApprove;

        public event EventHandler QAEngOrTLReject;

public bool QAEngOrTLApproved(Guid instanceId, ResponseDataObject rdo) {
            if (QAEngOrTLApprove != null) {
                QAEngOrTLApprove(this, new XMESWFRecipeResponseDataEventArgs(rdo, instanceId));
                return true;
            }return false;

        }

      public  bool QAEngOrTLRejected(Guid instanceId, ResponseDataObject rdo) {
            if (QAEngOrTLReject != null) {
                QAEngOrTLReject(this, new XMESWFRecipeResponseDataEventArgs(rdo,instanceId));
                return true;
            } return false;
        }
}

[Serializable]
    public class XMESWFRecipeResponseDataEventArgs : ExternalDataEventArgs {
        public readonly ResponseDataObject rdo = null;
        public XMESWFRecipeResponseDataEventArgs(ResponseDataObject rdo, Guid instanceId)
            : base(instanceId) 
        {
            this.rdo = rdo;
        }
    }

The event is raised using -

 IRecipeChangeService s =
                   ExceptionServices.GetExceptionService(WorkflowExceptionType.RecipeChange)
                   as IRecipeChangeService;
  s.QAEngOrTLApproved(new Guid(instanceId), rdo);

Thanks .

Answer 1

Do us a favour and please make sure the code is readable.

There can be a number of reasons the workflow cannot be found. First of all you will also see this error if there is no persistence service and the workflow isn't in memory. Another thing to check is if the workflow hasn't completed yet. This can be either as the result of some other event or because of an unhandled error.