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Fixed in 2020.2

Votes

0

Found in

2018.3.5f1

Issue ID

1127313

Regression

No

PrefabUtility.SaveAsPrefabAsset() freezes the editor when called from OnValidate() method

Scripting

-

To reproduce:
1. Open any project
2. Import the script attached "CreatePrefab.cs" (or make your own: call PrefabUtility.SaveAsPrefabAsset() from method OnValidate())
3. Assign the script to a game object and pick a game object for the script's public field (ex.: freshly created 3d object)

Result: editor freezes on trying to validate script after changes have been made

Reproduced in: 2018.3.7f1, 2019.1.0b5, 2019.2.0a6

Note1: OnValidate() can also be checked by commenting out PrefabUtility.SaveAsPrefabAsset(), adding GameObject to script's public field and decommenting. OnValidate
will once again freeze the editor.
Note2: PrefabUtility not available on LTS

  1. Response avatar

    Resolution Note (fix version 2020.2):

    Saving a prefab during OnValidate, physics trigger/contact, animation event callbacks, rendering callbacks is not allowed and is now handled and an error message is logged in the console.

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