Cities: Skylines

Cities: Skylines

BIG Urban Roads - Complete Collection
Error popping up
Broken assets:

Custom Assets: 2244167659.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2245795220.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2245795220.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2253466511.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2253466511.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2266312441.HighwayRampPillar: Duplicate prefab name
Custom Assets: 2218967993.HighwayBridgePillar: Duplicate prefab name
Custom Assets: 2218967993.HighwayBridgePillar: Duplicate prefab name [BrokenAssetException]

Details:
No details

Any ideas? I'm a noob when it comes to understanding this stuff. I'm not running any other road, bridge, or highway mods.