Error with workflow when assigning a " " (space) value to a string variable

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1

The error happens when a second box of the workflow is triggered. The box assigns a space value to a string variable:
vCTCheck = " "

Variable is declared. See here:
CheckTrakerFileAndDispatchIssueProcess.xaml (8.5 KB)

The error is as below:

21.4.4+Branch.master.Sha.a8b5101efe02651274064093e9c7410fedff7696

Message: The following errors were encountered while processing the workflow tree:
‘CheckTrakerFileAndDispatchIssueProcess’: The private implementation of activity ‘1: CheckTrakerFileAndDispatchIssueProcess’ has the following validation error: Value for a required activity argument ‘Value’ was not supplied.

Exception Type: System.Activities.InvalidWorkflowException

RemoteException wrapping System.Activities.InvalidWorkflowException: The following errors were encountered while processing the workflow tree:
*‘CheckTrakerFileAndDispatchIssueProcess’: The private implementation of activity ‘1: CheckTrakerFileAndDispatchIssueProcess’ has the following validation error: Value for a required activity argument ‘Value’ was not supplied. *

  • at System.Activities.Validation.ActivityValidationServices.ThrowIfViolationsExist(IList`1 validationErrors, ExceptionReason reason)*
  • at System.Activities.WorkflowInspectionServices.d__3.MoveNext()*
  • at System.Linq.Enumerable.d__17`2.MoveNext()*
  • at System.Linq.Enumerable.d__59`1.MoveNext()*
  • at System.Linq.Enumerable.d__17`2.MoveNext()*
  • at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()*
  • at System.Linq.Enumerable.d__64`1.MoveNext()*
  • at System.Linq.Buffer1..ctor(IEnumerable1 source)*
  • at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)*
  • at UiPath.Executor.Tracking.TrackingHelpers.GetVariableNames(Activity activity)*
  • at UiPath.Executor.Tracking.TrackingHelpers.TrackVariables(TrackingProfile profile, WorkflowInfo workflowInfo)*
  • at UiPath.Executor.Tracking.DebugTrackingParticipant.RegisterWorkflow(WorkflowInfo workflowInfo)*
  • at UiPath.Executor.DebuggerPlugin.UiPath.Executor.IDebuggerPlugin.RegisterWorkflowTracking(WorkflowInfo workflowInfo)*
  • at UiPath.Executor.Tracking.WorkflowTracking.RegisterWorkflowTracking(WorkflowInfo workflowInfo)*
  • at UiPath.Executor.WorkflowRuntime.RegisterWorkflow(WorkflowInfo workflowInfo)*
  • at UiPath.Executor.RobotRunner.InitWorkflowApplication()*
  • at UiPath.Executor.RobotRunner.d__86.MoveNext()*

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4

@pfigurski - Please try this…

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6

@pfigurski thanks for reporting this. This looks like a bug on our end.