[Entities 0.6.0] GenerateAuthoringComponent Causes Unity 2019.3 to Crash

Unity Engine
,
1

Entering play mode in a scene containing only a GameObject having only a ConvertToEntity component and a generated authoring component causes the editor to crash without invoking the crash handler. This occurs for me using both Unity 2019.3.0f6 and 2019.3.3f1 with only the Entities 0.6.0-preview.24 package added.

GameObject:

5533756--568795--GameObject.PNG
5533756--568795--GameObject.PNG956×392 32.7 KB

Test Component:

[GenerateAuthoringComponent]
public struct Test : IComponentData
{
}

The crash is occurring when attempting to JIT compile the Convert method of the generated authoring component as shown below:

5533756--568801--CrashCallstack.PNG
5533756--568801--CrashCallstack.PNG2523×465 49.3 KB

The failed assert message before the abort is as follows:

  • Assertion at …\mono\metadata\metadata.c:1117, condition `idx < t->rows’ not met

Creating an authoring component manually does workaround the issue, but does not seem like the best option moving forward.

Is anyone else seeing this issue? Is there a resolution I missed somewhere?

5533756–568804–ECSTest.zip (18.5 KB)

2

Turns out this is caused by using a generated authoring component where the component struct is not referenced anywhere else in the code. Adding a dummy system that references the component type solved the problem. :frowning: