Search Issue Tracker
By Design
Votes
3
Found in [Package]
0.17.0-preview.41
Issue ID
1311695
Regression
Yes
[ECS] GetOrCreateSystem ArgumentException with ISystemBase
Reproduction steps:
1. Open attached project "EntitiesSystem.zip" and scene "SampleScene"
2. Enter Play Mode
3. Observe Console window
Expected result: no error
Actual result: "ArgumentException: 'Unity.Entities.BurstCompatibleSystem' cannot be constructed as it does not inherit from ComponentSystemBase <...>" error
Reproducible with: 0.17.0-preview.41 (2020.2.3f1, 2021.1.0b5, 2021.2.0a4)
Not reproducible with: 0.11.2-preview.1 (2019.4.20f1), 0.16.0-preview.21 (2020.2.3f1)
Could not test with: 2018.4.31f1 (compilation errors)
Comments (4)
-
Tom163
Jul 16, 2025 20:23
I see this in Unity 6. Is that even possible?
-
AdamBebko
Apr 27, 2021 16:48
Yes I started getting this too. Hard to tell where it's coming from and what is causing it.
-
anihilnine
Apr 19, 2021 02:03
Did you guys manage to fix this? Started running into the issue now.
-
bobbaluba
Mar 16, 2021 09:40
Seeing this on 2020.3.0
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- var VisionOSEDRHeadromm has a comma instead of a dot when building with Metal Rendering App Mode and local OS localization is set to German
- IAP Catalog remove product “x” and add product “+” buttons are not consistent with other remove and add buttons in the Editor
- Performance issues in Play Mode when quickly hovering the mouse cursor over Hierarchy GameObjects
- Frame Debugger displays incorrect output when FidelityFX Super Resolution or Spatial-Temporal Upscaler is used with Temporal Anti-aliasing or Subpixel Morphological Anti-aliasing
- The layout system is failing to correctly calculate or apply the height of the Japanese fallback font when the primary English font's metrics are used
Resolution Note:
Workaround proposed. Will tackle API improvement to make it less likely to encounter this problem in a different issue.