Entity packages to 0.0.12 preview-24 errors

[castana1962]

Hi Since that you told me that this project should be updated to the new ForEach Api, for it, I updated it to Entities package 0.0.12 preview 24-timestampfix and then I got the following errors -Assembly has reference to non-existent assembly 'Unity.Rendering.Hybrid' (Assets/Scripts/MeshDemo.asmdef)

-'Unity.Entities.GameObjectEntity' is missing the class attribute 'ExtensionOfNativeClass'!

-Unity.Entities.GameObjectEntity' is missing the class attribute 'ExtensionOfNativeClass'!

I also posted in in the Unity Github (EntityComponentSystemSamples) these errors and I got this answer

Hi, As this is an external repository you might want to file an issue there, however, this might help: There has been quite a few changes and optimizations going on and some of them required changes in native Unity, so for the current ECS and Unity.Physics samples you need to use 2019.1. I recommend you try to upgrade to project to a new unity version (b05 is required for preview.25 and later, current version is 0b8 which is also supported and might be required in the future). Note that the package is still in preview which means that APIs can get changed or even be removed, we're working on stabilizing them but the focus is on getting it right, so there might be a few pain points due to this (however when understanding the principles behind data oriented design they should be minimal). Please try if updating helps in your case, otherwise reach out to the forums for help as the issue system is meant to be for bugs directly related to ecs/physics,

For it, Could you help me to fix these errors to play this one in Unity 2019.1b5. Would it be possible? Thanks for your time Best Regards Alejandro