CHEK ACTIVITY SHOWS VALIDATION ERROR

Help Activities
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1

HI,
When i using Check activity it’s showing-
Main.xaml: Internal constraint exception while running constraint with name ‘Constraint’ against activity of type System.Activities.Statements.Sequence with name ‘Sequence’. Exception was: System.NullReferenceException: Object reference not set to an instance of an object.
at System.Activities.WorkflowApplication.Invoke(Activity activity, IDictionary2 inputs, WorkflowInstanceExtensionManager extensions, TimeSpan timeout) at System.Activities.WorkflowInvoker.Invoke(Activity workflow, IDictionary2 inputs)
at System.Activities.Validation.ActivityValidationServices.RunConstraints(ChildActivity childActivity, ActivityCallStack parentChain, IList1 constraints, ProcessActivityTreeOptions options, Boolean suppressGetChildrenViolations, IList1& validationErrors)
If i dissable “check activity” all is ok
plz help me to solve the issue

2

@ahsan591832

Please use the modern activity and it ahpuld solve the issue…

If you dont see modern activities then select the filter icon in activities panel and select show modern

Cheers

3

Hello. Can we please another suggestion. Good to read that we can use Modern Acrivities but this is sometimes not easy to migrate robots from Classic to Modern. How can we get this solved differently?

4

Did you fix it differently (Without going to Modern experience)?

5

@FautVoir

Try degrading the packages and check if the issue persists

cheers