Subscene script disappears on creation?

Unity Engine
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1

When creating a new subscene (from selection or not), the script shows as “missing”. I can change to debug and then update it, but then it loses all reference as a subscene.

9525226--1343989--upload_2023-12-12_14-8-3.png
9525226--1343989--upload_2023-12-12_14-8-3.png1161×525 68.9 KB

When playing (in editor) I get a warning:

The referenced script (Unknown) on this Behaviour is missing!

And this error:

ArgumentException: We are reading a UnityEngine.Object however no ObjectTable was provided to the ManagedObjectBinaryReader.
Unity.Entities.Serialization.ManagedObjectBinaryReader.Unity.Serialization.Binary.IContravariantBinaryAdapter<UnityEngine.Object>.Deserialize (Unity.Serialization.Binary.IBinaryDeserializationContext context) (at ./Library/PackageCache/com.unity.entities@1.1.0-pre.3/Unity.Entities/Serialization/ManagedObjectBinarySerialization.cs:223)
Unity.Serialization.Binary.BinaryPropertyReader.ReadValueWithAdapters[TValue] (TValue& value, Unity.Serialization.Binary.BinaryAdapterCollection+Enumerator adapters, System.Boolean isRoot) (at ./Library/PackageCache/com.unity.serialization@3.1.1/Runtime/Unity.Serialization/Binary/Properties/Internal/BinaryPropertyReader.cs:153)
Unity.Serialization.Binary.BinaryPropertyReader.ReadValue[TValue] (TValue& value, System.Boolean isRoot) (at ./Library/PackageCache/com.unity.serialization@3.1.1/Runtime/Unity.Serialization/Binary/Properties/Internal/BinaryPropertyReader.cs:137)
Unity.Serialization.Binary.BinaryPropertyReader.ReadValue[TValue] () (at ...

and this warning:

Error when processing 'AsyncLoadSceneJob(VirtualArtifacts/Extra/24/24bb55d99e30b8d71df4d9f07f864657.0.entities)': We are reading a UnityEngine.Object however no ObjectTable was provided to the ManagedObjectBinaryReader.
UnityEngine.Debug:LogWarning (object)
Unity.Debug:LogWarning (object) (at ./Library/PackageCache/com.unity.entities@1.1.0-pre.3/Unity.Entities/Stubs/Unity/Debug.cs:13)
Unity.Scenes.SceneSectionStreamingSystem:UpdateLoadOperation (Unity.Entities.SystemState&,Unity.Scenes.AsyncLoadSceneOperation,Unity.Entities.World,Unity.Entities.Entity,bool) (at ./Library/PackageCache/com.unity.entities@1.1.0-pre.3/Unity.Scenes/SceneSectionStreamingSystem.cs:599)...

I cleared my SceneDependencyCache thinking it would correct itself (perhaps I crossed the proverbial streams somewhere).

Any ideas?
(I’m on Entities 1.1.0-pre.3)

2

Opening another scene, and then re-opening the one with the subscene gives me this.

9525235--1343995--upload_2023-12-12_14-16-13.png
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3

Reimport the Entities package from the project window, right click, reimport

This is just a weird editor issue where packages don’t import

2 Likes
4

Good suggestion- but unfortunately that didn’t change it’s behavior.
I still get missing Subscene script reference as soon as it’s created.

5

Did you mean, reimport the Entities package from the ‘package manager window’?
I don’t see the package represented in the project window…

6

well, Unity- am I just SOL or is there something I can do to understand/resolve this?

7

This happens when upgrading from Entities 1.0 to something newer without deleting the Library directory afterwards and having Unity rebuild it. Usually deleting the Library cache fixes it.

8

No, in the project window under packages find unity entities and right click reimport

Note this fix no longer works in 2023.3 which is super annoying, packages constantly going missing

1 Like
9

Thank you!

10

Tertle you are a god among men! I tried everything… then reimporting all my packages magically fixed it.