A line feature was found that is not valid to participate in the tier pursuant to the subnetwork definition. The subnetwork name with the invalid feature is provided in the error.
Errors are generated for the invalid line features when executing the Update Subnetwork tool.
View any errors for invalid features and inspect the asset group and asset type.
To manually identify the asset groups and asset types that are invalid, perform a subnetwork trace for the subnetwork with invalid line features. Use the selected features in the line feature class to compare asset group and asset type combinations with the valid line features for the tier.
Use the network properties for the utility network to review the valid line features for the tier: Expand the drop-down menu next to the domain network, and expand Tiers. Review the asset group and asset type combinations in the Valid Lines column.
To resolve these errors, do one of the following:
- Change the asset group and asset type of the invalid line feature.
- Change the subnetwork definition for the tier to include additional valid line features. See Set or modify the subnetwork definition for more information.