Getting error in Get row Item activity

Help
1

While using Get row Item activity i am getting error in declaring a output of generic type

The workflow has validation errors. Review and resolve them first.

System.Activities.InvalidWorkflowException: The workflow has validation errors. Review and resolve them first. —> System.Activities.ValidationException: Compiler error(s) encountered processing expression “age”.Invalid L-value expression.:Reference expressions cannot end with Conversion. The provided expression’s type must exactly match the type T of VisualBasicReference or LambdaReference.
— End of inner exception stack trace —

2

You just remove a variable from output property and pass it again…This is not an error it’s problem with activity…