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Fixed in 2021.2.X
Votes
26
Found in
2019.3.0a2
2020.1
2020.1.0a15
Issue ID
1204407
Regression
No
[SerializeReference] Serialized Reference Data lost when the Class name is refactored
Reproduction steps:
1. Open "1204407" project
2. In the Project window Right Click -> "Create" -> "Data"
3. In the Inspector window click "Add"
4. Open "Jump2" and "Data" scripts
5. Change "Jump1" to "Jump2" and save
6. Focus the Editor
Expected Result: Class name refactoring doesn't affect Serialized Reference Data
Actual Result: Serialized Reference Data lost when the Class name is refactored resulting in "Unknown managed type referenced: [Assembly-CSharp] Game.Actions.Jump1" error
Reproduced with: 2020.1.0a16, 2019.3.0f3, 2019.3.0a2
Did not reproduce on(Feature not yet implemented): 2019.3.0a1, 2019.2.16f1, 2018.4.14f1, 2017.4.35f1
Notes:
2019.3.0a2 - "SafeBinaryRead cannot read [SerializeReference] fields without being provided with the full list of referenced types!"
Comments (2)
-
Tortuap
Jun 06, 2025 20:13
"This will require some significant architectural changes which we are looking to address in the 2021 time frame". In 2025, this has still not being addressed.
-
OndrejP
Oct 28, 2020 20:18
I'd be okay with FormerlySerializedAs on the class itself, it would specify previous name.
This workflow is used for fields and it's something I was expecting would work on classes as well.
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Resolution Note (fix version 2021.2):
This will require some significant architectural changes which we are looking to address in the 2021 time frame. Currently one way around the issue is to use UnityEngine.Scripting.APIUpdating.MovedFromAttribute to tag the class which was renamed, moved from namespace or assembly.