Timeline error: Object at index 0 is null

kloot

After working with the Spine timeline features a bit (not sure when it happens), I consistently get this error in runtime. Everything works though, bu the only way to get rid of it is to restart Unity:

SerializedObjectNotCreatableException: Object at index 0 is null
UnityEditor.Editor.CreateSerializedObject () (at <d1bec46880064709a5e713ad543e6d96>:0)
UnityEditor.Editor.GetSerializedObjectInternal () (at <d1bec46880064709a5e713ad543e6d96>:0)
UnityEditor.Editor.get_serializedObject () (at <d1bec46880064709a5e713ad543e6d96>:0)
Spine.Unity.Editor.SpineAnimationStateClipInspector.OnEnable () (at Packages/com.esotericsoftware.spine.timeline-3.8/Editor/SpineAnimationStateClipInspector.cs:51)

Thanks

kloot

Harald

Thanks for the info, unfortunately this seems like a Unity bug. Which version of Unity are you using?

kloot

2020.1.2

sincerelysleepy

I just started using timeline with Spine animation tracks and started getting these in all scenes, even in scenes I am not using timeline.

SerializedObjectNotCreatableException: Object at index 0 is null
UnityEditor.Editor.CreateSerializedObject () (at <2f1c602eae0d45c293fff3e3aef759fa>:0)
UnityEditor.Editor.GetSerializedObjectInternal () (at <2f1c602eae0d45c293fff3e3aef759fa>:0)
UnityEditor.Editor.get_serializedObject () (at <2f1c602eae0d45c293fff3e3aef759fa>:0)
Spine.Unity.Editor.SpineAnimationStateClipInspector.OnEnable () (at D:/Downloads/com.esotericsoftware.spine.timeline-3.8-2020-10-28/com.esotericsoftware.spine.timeline-3.8/Editor/SpineAnimationStateClipInspector.cs:51)

I'm using Unity 2019.4.17f1

Harald

Sorry for the late reply!

Unfortunately it seems like an unresolved bug in Unity (e.g. this forum thread lists no answers). Could you perhaps send us a minimal reproduction project that still shows the problem as a zip package, to contact@esotericsoftware.com? Then we can have a look at whether we can provide a workaround adressing this issue.