[Entities 0.0.12-preview.20]GameObjectEntity is missing by AssetBundle

When i build an GameObjectEntity prefab to AssetBundle,get the warning: "The class named 'Unity.Entities.GameObjectEntity' is not derived from MonoBehaviour or ScriptableObject!" when it be loaded.
But is run well before preview.16,why?

 

If you need something not to be stripped add it to your link.xml

https://docs.unity3d.com/Manual/IL2CPP-BytecodeStripping.html

 

I tred,but it's not work.

I build a prefab(GameObjectEntity) to assetbundle use 0.0.12-preview.20,it can not be loaded on the preview.20.
But it work well if i load it on the preview.15.

Sorry my english so pool.

 

Hi! We saw something maybe similar on our sample game team internally, which was caused by their using an internalized version of the package (i.e. they had put a writable copy of the package in their packages folder). Are you doing anything like this, or just pointing directly do the one in your library?

 

I get the package from Package Manager.
I tried to delete the folder of "AppData\Local\Unity\cache\packages\staging-packages.unity.com" and reimport all assets.
but the same problem remains.

 

my unity version is 2018.2.15f1

 

Just to narrow this down: Have you kept your Unity version constant and tried rolling back the package to preview15?

 

Yes.I keep the Unity version constant and roll back the package to preview 15, and load the assetbundle which build in preview 20,it's run well.
but if I load the same assetbundle in preview 20,the script "GameObjectEntity" will missing.

 

I test again in preview 21 today.The problem has not been solved.

 

Hi,I update unity version to 2018.3,get the error message:
'Unity.Entities.GameObjectEntity' is missing the class attribute 'ExtensionOfNativeClass'!

It's no problem if I copy com.unity.entities package from folder "Packages" to "Assets" and remove entities from the Package Manager, but Entity Debugger Window can not be open.
How can I fix it?

 

Hi~I upload a test here:
1.Build the "Assets\GameObject.Prefab" to AssetBundle and copy to "Assets\StreamingAssets"
2.Load the AssetBundle and Instantiate it in "Asset\Test.cs".

 

I had this error as well when loading GameObjectEntity prefabs in an asset bundle. Upgrading to the 2019.1 beta fixed it.