System.NullReferenceException: Object reference not set to an instance of an object

[Dalxunio]

Hi im have problem with this im cant place anything building because if im place something building im getting errors like that:

System.NullReferenceException: Object reference not set to an instance of an object
at BuildingAI.CheckUnlocking () [0x00000] in <filename unknown>:0
at BuildingManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckMilestone (.MilestoneInfo milestone, Boolean forceUnlock, Boolean forceRelock) [0x00000] in <filename unknown>:0
at ManualMilestone.Unlock () [0x00000] in <filename unknown>:0
at PlayerBuildingAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at PoliceStationAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at BuildingManager.CreateBuilding (System.UInt16+ building, ColossalFramework.Math.Randomizer+ randomizer, .BuildingInfo info, Vector3 position, Single angle, Int32 length, UInt32 buildIndex) [0x00000] in <filename unknown>:0
at BuildingTool.CreateBuilding (.BuildingInfo+ info, Vector3 position, Single angle, Int32 relocating, Boolean needMoney, Boolean fixedHeight) [0x00000] in <filename unknown>:0
at BuildingTool+<CreateBuilding>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0
at AsyncTask.Execute () [0x00000] in <filename unknown>:0




System.NullReferenceException: Object reference not set to an instance of an object
at BuildingAI.CheckUnlocking () [0x00000] in <filename unknown>:0
at BuildingManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckMilestone (.MilestoneInfo milestone, Boolean forceUnlock, Boolean forceRelock) [0x00000] in <filename unknown>:0
at ManualMilestone.Unlock () [0x00000] in <filename unknown>:0
at PlayerBuildingAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at SchoolAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at BuildingManager.CreateBuilding (System.UInt16+ building, ColossalFramework.Math.Randomizer+ randomizer, .BuildingInfo info, Vector3 position, Single angle, Int32 length, UInt32 buildIndex) [0x00000] in <filename unknown>:0
at BuildingTool.CreateBuilding (.BuildingInfo+ info, Vector3 position, Single angle, Int32 relocating, Boolean needMoney, Boolean fixedHeight) [0x00000] in <filename unknown>:0
at BuildingTool+<CreateBuilding>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0
at AsyncTask.Execute () [0x00000] in <filename unknown>:0



System.NullReferenceException: Object reference not set to an instance of an object
at BuildingAI.CheckUnlocking () [0x00000] in <filename unknown>:0
at BuildingManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckMilestone (.MilestoneInfo milestone, Boolean forceUnlock, Boolean forceRelock) [0x00000] in <filename unknown>:0
at ManualMilestone.Unlock () [0x00000] in <filename unknown>:0
at PlayerBuildingAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at MonumentAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at BuildingManager.CreateBuilding (System.UInt16+ building, ColossalFramework.Math.Randomizer+ randomizer, .BuildingInfo info, Vector3 position, Single angle, Int32 length, UInt32 buildIndex) [0x00000] in <filename unknown>:0
at BuildingTool.CreateBuilding (.BuildingInfo+ info, Vector3 position, Single angle, Int32 relocating, Boolean needMoney, Boolean fixedHeight) [0x00000] in <filename unknown>:0
at BuildingTool+<CreateBuilding>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0
at AsyncTask.Execute () [0x00000] in <filename unknown>:0


System.NullReferenceException: Object reference not set to an instance of an object
at BuildingAI.CheckUnlocking () [0x00000] in <filename unknown>:0
at BuildingManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckAllMilestones () [0x00000] in <filename unknown>:0
at UnlockManager.CheckMilestone (.MilestoneInfo milestone, Boolean forceUnlock, Boolean forceRelock) [0x00000] in <filename unknown>:0
at ManualMilestone.Unlock () [0x00000] in <filename unknown>:0
at PlayerBuildingAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at DepotAI.CreateBuilding (UInt16 buildingID, .Building+ data) [0x00000] in <filename unknown>:0
at BuildingManager.CreateBuilding (System.UInt16+ building, ColossalFramework.Math.Randomizer+ randomizer, .BuildingInfo info, Vector3 position, Single angle, Int32 length, UInt32 buildIndex) [0x00000] in <filename unknown>:0
at BuildingTool.CreateBuilding (.BuildingInfo+ info, Vector3 position, Single angle, Int32 relocating, Boolean needMoney, Boolean fixedHeight) [0x00000] in <filename unknown>:0
at BuildingTool+<CreateBuilding>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0
at AsyncTask.Execute () [0x00000] in <filename unknown>:0

i dont know what its a reason of error

[MarkJohnson]

Null errors are typically workshop related errors. Null means ZERO, so you may be missing something the map needs in order to function.

I see a lot of Filename Unknown issues in those messages.

But typically it is workshop related.

[cogvos]

Load up this mod

https://steamcommunity.com/sharedfiles/filedetails/?id=2858591409&searchtext=loading+screen

It will report missing assets etc, you can also configure it do produce a report of all the issues which you can then search.

good luck.