I am receiving the following error in the very beginning of executing my bot. I have not been able to determine which activity is causing this error, and, therefore, I have been unable to fix it. Any help is greatly appreciated. Thanks!
18.4.5+Branch.support/v2018.4.Sha.2a53a262e2c1098055c3ecbdabe73d45e0a6dc29
Source: T-Letter Automation
Message: Value cannot be null.
Parameter name: source
Exception Type: System.ArgumentNullException
An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.ArgumentNullException: Value cannot be null.
Parameter name: source
at System.Linq.Enumerable.Count[TSource](IEnumerable1 source, Func2 predicate)
at lambda_method(Closure , ActivityContext )
at Microsoft.VisualBasic.Activities.VisualBasicValue1.Execute(CodeActivityContext context) at System.Activities.CodeActivity1.InternalExecuteInResolutionContext(CodeActivityContext context)
at System.Activities.Runtime.ActivityExecutor.ExecuteInResolutionContext[T](ActivityInstance parentInstance, Activity1 expressionActivity) at System.Activities.Variable1.PopulateDefault(ActivityExecutor executor, ActivityInstance parentInstance, Location location)
at System.Activities.ActivityInstance.ResolveVariable(Variable variable, ActivityExecutor executor)
at System.Activities.ActivityInstance.ResolveVariables(ActivityExecutor executor)
at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)
1 post - 1 participant