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Error "System.ArgumentException: AssignedTo at System.Activities.Statements.Throw.Execute"

ISSUE
When running a workflow containing a Task action, the following error might occur:

Details: An unhandled exception occurred during the execution of the workflow instance. 
Exception details: System.ArgumentException: AssignedTo at System.Activities.Statements.Throw.Execute(CodeActivityContext context) at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation) 
Exception from activity Throw If Sequence NintexActivities.WorkflowXaml_{GUID} [Task action name] 
ERROR CODE
Details: An unhandled exception occurred during the execution of the workflow instance.  Exception details: System.ArgumentException: AssignedTo at System.Activities.Statements.Throw.Execute(CodeActivityContext context) at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)  Exception from activity Throw If Sequence NintexActivities.WorkflowXaml_{GUID} [Task action name] 
RESOLUTION
From the Nintex Workflow for Office 365 Designer, specify the format value of field "Participant" as an "Email Address":
  1. Drag action "Assign a task" or "Start a task process" into Workflow Designer.
  2. Double-click the action to configure it. 
  3. Navigate to field "Participants" and specify a value. 
  4. Click the "fx" button beside the "Participants" value to specify the format of this value. 
  5. Choose "Email Address" from the pop-up dialog window to choose how to format value of "Participant".
ADDITIONAL INFORMATION
RELATED LINKS
Version history
Revision #:
1 of 1
Last update:
‎11-20-2018 01:22 PM
Updated by: