Data source element {2} is mapped to a {0} with name {1}. This {0} is already defined in at least two other operations with ...

Data source element {2} is mapped to a {0} with name {1}. This {0} is already defined in at least two other operations with mismatched data types. Before mapping the {0} again, make sure that all data source elements that this {0} is mapped to have the same data type.