Description
The network sources and portions of their geometry (Shape, Middle, and End) to be searched for finding locations on the network are not specified or are incorrect.
Solution
Make sure the Search Criteria parameter in Add Locations or Calculate Locations tools correctly references the network sources from the specified network dataset or network analysis layer. For example, if the network analysis layer was created using one network dataset and subsequently the network dataset was updated or changed, the Search Criteria parameter for Add Locations tool must reflect the changes in the network sources.