030390: The field type for the alternate ID field "<value>" in the edge feature source(s) does not match the field type for the "<value>" field in turn feature source "<value>".

Description

The turn feature class already has a set of alternate ID fields (AltID1, AltID2, and so on), but the data type of those fields does not match the data type of the specified alternate ID field in the edge feature class.

Solution

Delete the existing alternate ID fields in the turn feature class. or specify a different field from the edge source.

Learn more about the Populate Alternate ID Fields tool