Unity.Physics - Recursive type definition detected

Hello!

Is anyone familiar with this error?

Code (CSharp):

1. TypeLoadException: Recursive type definition detected
2. Unity.Jobs.JobHandle:ScheduleBatchedJobsAndCompleteAll(Void*, Int32)
3. Unity.Jobs.JobHandle:CompleteAll(NativeArray`1) (at C:/buildslave/unity/build/Runtime/Jobs/ScriptBindings/JobHandle.bindings.cs:49)
4. Unity.Physics.Systems.EndFramePhysicsSystem:OnUpdate(JobHandle) (at Library/PackageCache/com.unity.physics@0.1.0-preview/Unity.Physics/ECS/Systems/EndFramePhysicsSystem.cs:43)
5. Unity.Entities.JobComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ComponentSystem.cs:687)
6. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ComponentSystem.cs:169)
7. Unity.Entities.ComponentSystemGroup:OnUpdate() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ComponentSystemGroup.cs:369)
8. Unity.Entities.ComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ComponentSystem.cs:570)
9. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ComponentSystem.cs:169)
10. Unity.Entities.DummyDelegateWrapper:TriggerUpdate() (at Library/PackageCache/com.unity.entities@0.0.12-preview.31/Unity.Entities/ScriptBehaviourUpdateOrder.cs:135)
11.  

In addition a single entry of "TypeLoadException: Recursive type definition detected" also shows up with no further info where it occured.

I've some models with PhysicsShape and Body. Nothing special, unless the EntityConversion system does something I don't know about.

I'm not sure how to debug this. Where can I get more info on this?

Thanks!

 

I think it's related to some struct used in one of the jobs scheduled before Physics system.
A recursive type definition is something like this:

Code (CSharp):

1. struct A
2. {
3.    public A FirstField; // direct use of the same type
4.  
5.    public B OtherField; // indirect use of the same type because of B.Field is same type.
6. }
7.  
8. struct B
9. {
10.    public A Field;
11. }

So type has one of the fields of own type.

 

I have the same problem too. I don't reference other structs directly in my components. I only reference their entities.
Did you manage to solve this issue?

 

I have the same issue. Also, it seems like there are some race conditions since sometimes everything works just fine

Code (CSharp):

1. TypeLoadException: Recursive type definition detected
2. Unity.Jobs.JobHandle:ScheduleBatchedJobsAndComplete(JobHandle&)
3. Unity.Jobs.JobHandle:Complete()
4. Unity.Entities.ComponentJobSafetyManager:CompleteAllJobsAndInvalidateArrays() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentJobManager.cs:140)
5. Unity.Entities.EntityManager:CompleteAllJobs() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/EntityManagerSync.cs:19)
6. Unity.Entities.EntityManager:BeforeStructuralChange() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/EntityManagerSync.cs:41)
7. Unity.Entities.EntityManager:AddComponent(UnsafeMatchingArchetypePtrList, EntityQueryFilter, ComponentType) (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/EntityManagerChangeArchetype.cs:715)
8. Unity.Entities.EntityManager:AddComponent(EntityQuery, ComponentType) (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/EntityManagerChangeArchetype.cs:84)
9. Unity.Transforms.ParentSystem:UpdateNewParents() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Transforms/ParentSystem.cs:231)
10. Unity.Transforms.ParentSystem:OnUpdate(JobHandle) (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Transforms/ParentSystem.cs:373)
11. Unity.Entities.JobComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:924)
12. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:284)
13. Unity.Entities.ComponentSystemGroup:OnUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystemGroup.cs:602)
14. Unity.Entities.ComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:800)
15. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:284)
16. Unity.Entities.ComponentSystemGroup:OnUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystemGroup.cs:602)
17. Unity.Entities.ComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:800)
18. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:284)
19. Unity.Entities.DummyDelegateWrapper:TriggerUpdate() (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ScriptBehaviourUpdateOrder.cs:144)

And then gets followed by

Code (CSharp):

1. IndexOutOfRangeException: Index 7077988 is out of range of '10' Length.
2. Unity.Collections.NativeArray`1[T].FailOutOfRangeError (System.Int32 index) (at <86888d7bf865490ca0c08194bf6338db>:0)
3. Unity.Collections.NativeArray`1[T].CheckElementReadAccess (System.Int32 index) (at <86888d7bf865490ca0c08194bf6338db>:0)
4. Unity.Collections.NativeArray`1[T].get_Item (System.Int32 index) (at <86888d7bf865490ca0c08194bf6338db>:0)
5. Unity.Physics.BoundingVolumeHierarchy.Refit (Unity.Collections.NativeArray`1[T] aabbs, System.Int32 nodeStartIndex, System.Int32 nodeEndIndex) (at Library/PackageCache/com.unity.physics@0.2.0-preview/Unity.Physics/Collision/Geometry/BoundingVolumeHierarchyBuilder.cs:564)
6. Unity.Physics.BoundingVolumeHierarchy+FinalizeTreeJob.Execute () (at Library/PackageCache/com.unity.physics@0.2.0-preview/Unity.Physics/Collision/Geometry/BoundingVolumeHierarchyBuilder.cs:842)
7. Unity.Jobs.IJobExtensions+JobStruct`1[T].Execute (T& data, System.IntPtr additionalPtr, System.IntPtr bufferRangePatchData, Unity.Jobs.LowLevel.Unsafe.JobRanges& ranges, System.Int32 jobIndex) (at <86888d7bf865490ca0c08194bf6338db>:0)
8.  

 

I'm pretty sure I hit a close variation of this issue when running systems using the latest Unity Physics preview as of writing as well. I didn't find it reported anywhere, so I submitted it as a bug with a minimally reproducible project here.

Unity Editor: 2019.3.0b6
Unity Physics: preview - 0.2.4
Entities: preview - 0.1.1
Jobs: preview - 0.1.1

 

Same issue.

If I remove the Unity Physics: preview - 0.2.4 the error dissapear. So I am pretty sure that it is due to this version.
Need to find if putting an initialisation order will solve this.

 

I have this issue without using physics. It happens after Unity compiles my modified code and only maybe once or twice a day. Console gets spammed with about 20 of these messages without any stacktrace. Once I hit play though everything works fine.

 

I think I solved this by renaming one of my components - LinearVelocity (to MyLinearVelocity). Odd because I have all my stuff in it's own namespace.

Edit: Still getting this error after above change, but less frequently. I think the renaming didn't solve it at all, just coincidence the frequency of the issue reduced at the time.

 

Found a more descriptive error:

Code (csharp):

1. TypeLoadException: Recursive type definition detected
2. Unity.Jobs.JobHandle:ScheduleBatchedJobsAndComplete(JobHandle&)
3. Unity.Jobs.JobHandle:Complete()
4. Unity.Entities.ComponentJobSafetyManager:CompleteReadAndWriteDependencyNoChecks(Int32) (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentJobManager.cs:374)
5. Unity.Entities.ComponentJobSafetyManager:CompleteDependenciesNoChecks(Int32*, Int32, Int32*, Int32) (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentJobManager.cs:200)
6. Unity.Entities.ComponentSystemBase:CompleteDependencyInternal() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:730)
7. Unity.Entities.ComponentSystemBase:AddReaderWriters(EntityQuery) (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:639)
8. Unity.Entities.ComponentSystemBase:GetEntityQueryInternal(ComponentType*, Int32) (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:653)
9. Unity.Entities.ComponentSystemBase:HasSingleton() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:580)
10. Unity.Physics.Systems.StepPhysicsWorld:OnUpdate(JobHandle) (at Library/PackageCache/com.unity.physics@0.2.3-preview/Unity.Physics/ECS/Systems/StepPhysicsWorld.cs:93)
11. Unity.Entities.JobComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:955)
12. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:315)
13. Unity.Entities.ComponentSystemGroup:OnUpdate() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystemGroup.cs:595)
14. Unity.Entities.ComponentSystem:InternalUpdate() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:831)
15. Unity.Entities.ComponentSystemBase:Update() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ComponentSystem.cs:315)
16. Unity.Entities.DummyDelegateWrapper:TriggerUpdate() (at Library/PackageCache/com.unity.entities@0.1.0-preview/Unity.Entities/ScriptBehaviourUpdateOrder.cs:144)

 

Anyone solved this problem?
Still have this exception from time to time.
When i uninstall Unity physics it does not happen again. Also does not occur when there are no physic objects in the scene.

 

I have a bug in the system for this, they wanted a video, however I haven't had the issue re-occur since they asked. If you can post one that might help them.

 

Have managed a video of issue and emailed.
Response was that this issue is known:
https://issuetracker.unity3d.com/is...and-errors-are-thrown-when-entering-play-mode

 

Thanks, then we wait and hope they fixed it in the next release

 

I had the same problem. It occurs in a line from one simple error. I wrote the ":" I wrote the ":" instead of ";" at the end of the line.

 

For us we had to cast an int to a float manually (even though Rider says the cast is redundant. Seems to be a compiler error?