EnterProjectStage - reading GUID from a string variable within Workflow created in Visual Studio 2012. RRS feed

  • Question

  • Hi,

    I am creating a Project Server Workflow (site workflow) using Visual Studio 2012.

    If i set the "EnterProjectStage" activity with a GUID within quotes the workflow works (as suggested in the MSDN blog (

    However, the GUID of stages will change from environment to environmet (QA, Stage, PROD). So, I tried setting the GUID in a string variable (which i am populating dynamically) and assigned the string variable to the "EnterProjectStage" activity. However, this dynamic assignment of stage id to "EnterProjectStage" does not work and after deployment the workflow dumps with the following error:


      • Exception Starting Workflow: Sequence contains no elements. Trace: at System.Linq.Enumerable.First[TSource](IEnumerable`1 source) at Microsoft.Office.Project.Server.BusinessLayer.Workflow.<FillWorkflowStatusTableFromXaml>b__47(XElement e) at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext() at System.Linq.Enumerable.<DistinctIterator>d__81`1.MoveNext() at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Microsoft.Office.Project.Server.BusinessLayer.Workflow.FillWorkflowStatusTableFromXaml(String xaml, WorkflowDataSet& ds, Guid projUid) at Microsoft.Office.Project.Server.BusinessLayer.Workflow.StartWorkflow(Guid projectGuid, Guid enterpriseProjectTypeUid, Boolean isNewProject, Guid previousEntepriseProjectTypeUid, Boolean skipStage, Guid stageToSkipTo):
      • WorkflowExceptionStartingWorkflow (35115). Details: id='35115' name='WorkflowExceptionStartingWorkflow' uid='b31d825e-1d00-e411-9466-005056b11412'. 


    Is there a way the "EnterProjectStage" can be made dynamic so that it reads from a variable.



    Monday, June 30, 2014 8:15 AM