030031 : Could not find a field named <value> in the <value> turn feature class.

Description

The given alternate ID field does not exist in the turn feature classes.

Solution

Make sure all the alternate ID fields exist in all the turn feature classes in the network dataset. For example, if the alternate ID field is AltID and the turn feature classes have the maximum edges value as 2, then all the turn feature classes must have fields named AltID1 and AltID2.