I have installed DMF 2.0, I created new custom entity for Employee and created a new method 'GenerateWorkerTitle' after I modified target mapping by adding new record then I switch to design mode(preview mapping) the relation is not created.
after that I closed, and when tried to open Modify Target Mapping again popped up error : Duplicate assignment found for the following target field 'GenerateWorkerTitle'.
How to resolve this? acctually it is not duplicate cos I created new entity and only have 1 GenerateWorkerTitle