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Fixed in 2021.2.X



Found in


Issue ID




Deprecated UnityEngine.AssetModificationProcessor should be removed

Asset - Database


How to reproduce:
1. Open attached project "Deprecated AssetModificationProcessor"
2. Open "Dep" C# script in the root Assets folder
3. Observe that AssetModificationProcessor is deprecated

Expected result: AssetModificationProcessor class is inherited from UnityEditor namespace and it is not deprecated
Actual result: AssetModificationProcessor is inherited from an unknown source and it is deprecated. UnityEngine nor UnityEditor namespaces are used

Reproducible with: 2017.2.4f1, 2017.4.13f1, 2018.1.9f2, 2018.2.13f1, 2018.3.0b6, 2019.1.0a5

Note: Both UnityEngine.AssetModificationProcessor and UnityEditor.AssetModificationProcessor classes reference "..\Editor\Data\Managed\UnityEditor.dll"

Workaround: Inherit "UnityEditor.AssetModificationProcessor" instead of "AssetModificationProcessor"

  1. Resolution Note (fix version 2021.2):

    Fixed in: 2021.2.0a4

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