NullReferenceException: Object reference not set to an instance of an object.
UnityEngine.Bindings.ThrowHelper.ThrowNullReferenceException (System.Object obj) (at <454b8adca03e44db8a0e3ace7093e9b8>:0)
UnityEditor.SerializedObject.get_objectVersion () (at :0)
UnityEditor.UIElements.Bindings.SerializedObjectBindingBase.GetViewHashCode () (at <62cff2935c2446f5b89d419f3e03f073>:0)
UnityEngine.UIElements.VisualTreeDataBindingsUpdater.GetDataSourceVersion (System.Object source) (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEngine.UIElements.VisualTreeDataBindingsUpdater.Update () (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEngine.UIElements.Panel.UpdateDataBinding () (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at <342504bd0e804d8681580f16844e29e7>:0)
UnityEditor.RetainedMode.UpdateSchedulers () (at <62cff2935c2446f5b89d419f3e03f073>:0)
The game is working fine, it is text based but includes various buttons. But, as I clicked on play, the errors started to gather rapidly and in a short amount of time, I wa sleft with:
Can you please provide a ticket number or additional context for this? Would love to know if it’s relevant to my case and if I can track its resolution.
Here’s my callstack. I thought it was the same as above at first glance, but it does differ.
NullReferenceException: Object reference not set to an instance of an object.
at UnityEngine.Bindings.ThrowHelper.ThrowNullReferenceException (System.Object obj) [0x00018] in C:\build\output\unity\unity\Runtime\Export\Scripting\BindingsHelpers.cs:62
at UnityEngine.Component.get_gameObject () [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.Component.TryGetComponent[T] (T& component) [0x00002] in C:\build\output\unity\unity\Runtime\Export\Scripting\Component.bindings.cs:58
at UnityEngine.Rendering.HighDefinition.HDAdditionalLightData.get_legacyLight () [0x00018] in .\Library\PackageCache\com.unity.render-pipelines.high-definition@16.0.5\Runtime\Lighting\Light\HDAdditionalLightData.cs:2182
at UnityEngine.Rendering.HighDefinition.HDAdditionalLightData.TickLateUpdate () [0x0005b] in .\Library\PackageCache\com.unity.render-pipelines.high-definition@16.0.5\Runtime\Lighting\Light\HDAdditionalLightData.cs:2666
at UnityEngine.Rendering.HighDefinition.LightLateUpdate.Tick () [0x00001] in .\Library\PackageCache\com.unity.render-pipelines.high-definition@16.0.5\Runtime\Lighting\Light\HDAdditionalLightData.cs:3883
Yes, that’s not a problem with UI Toolkit, looks more like a rendering/lighting problem in the scene. You can try the Graphics forums for that one : https://forum.unity.com/categories/graphics.75/
I’m having what I think is a similar problem in 6000.0.32. It happens every so often when I Run. Quitting Unity and restarting fixes the problem, usually. Sometimes I have to restart twice. Sometimes it happens after just 2-3 runs, sometimes not for quite a while. Not a serious problem, mostly just annoying because of the wasted time. It is pretty annoying to have to restart Unity so frequently.
NullReferenceException: Object reference not set to an instance of an object.
UnityEngine.Bindings.ThrowHelper.ThrowNullReferenceException (System.Object obj) (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/BindingsHelpers.cs:62)
UnityEditor.SerializedObject.get_isEditingMultipleObjects () (at <62fab501750b4de3afc961a1c4817728>:0)
UnityEditor.UIElements.Bindings.SerializedObjectList.get_Count () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BaseListViewSerializedObjectBinding.cs:96)
UnityEngine.UIElements.VerticalVirtualizationController`1[T].get_itemsCount () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Collections/Virtualization/VerticalVirtualizationController.cs:27)
UnityEngine.UIElements.DynamicHeightVirtualizationController`1[T].IsIndexOutOfBounds (System.Int32 i) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Collections/Virtualization/DynamicHeightVirtualizationController.cs:1151)
UnityEngine.UIElements.DynamicHeightVirtualizationController`1[T].CleanItemHeightCache () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Collections/Virtualization/DynamicHeightVirtualizationController.cs:983)
UnityEngine.UIElements.DynamicHeightVirtualizationController`1[T].Refresh (System.Boolean rebuild) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Collections/Virtualization/DynamicHeightVirtualizationController.cs:168)
UnityEngine.UIElements.BaseVerticalCollectionView.RefreshItems () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Controls/BaseVerticalCollectionView.cs:1286)
UnityEngine.UIElements.BaseVerticalCollectionView.UnityEngine.ISerializationCallbackReceiver.OnAfterDeserialize () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Controls/BaseVerticalCollectionView.cs:2096)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:219)
Have you updated your editor version since then? 6000.0.32 is about 3 months out of date by now. Potentially this has been fixed since then, but work checking the release notes.
I’m on 6000.0.47 and started having this problem (with the same get_isEditingMultipleObjects callstack as others have posted) just yesterday. Restarting Unity “fixes” it, but it comes back after while, seemingly at random. It seems like it has something to do with which editor windows are open/focused, but that hasn’t changed for me from before to after the problem appeared.
I’m literally preparing shipping builds for 1.0.0 right this moment (so updating the Editor is not an option) where every mouse click is a tightrope act. So even though I understand this is just Editor stuff, it’s very unnerving to have appear suddenly like this without any explanation.
