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Fixed in 2022.2.X

Fixed in 2022.1.X



Found in




Issue ID




Immutable Package errors are thrown when selecting a Prefab containing Canvas Component



How to reproduce:
1. Create a new URP or HDRP project
2. Open the "Packages -> Core RP Library -> Runtime -> Debugging -> Prefabs -> Resources" folder in the Project Browser
3. Select the "DebugUICanvas" Prefab in the Project Browser

Expected result: No error is thrown
Actual result: Console log is spammed with "ArgumentException: Can't save an immutable Prefab" errors

Reproducible with: 2022.1.0a6, 2022.1.0b7, 2022.2.0a5
Not reproducible with: 2019.4.36f1, 2020.3.29f1, 2021.2.12f1, 2022.1.0a5

Note: Exporting the Package throws "Saving Prefab to immutable folder is not allowed: PREFAB_PATH" errors in the Console log, where PREFAB_PATH is the path for the Prefab in an immutable Unity Package

  1. Resolution Note (fix version 2022.2):

    Fixed in 2022.2.0a15

  2. Resolution Note (fix version 2022.1):

    Fixed in 2022.1.4f1

Comments (4)

  1. ecreators

    Jun 05, 2022 15:59

    Is already known, when the fixed version is available in beta?

  2. ecreators

    Apr 25, 2022 18:23

    Same with other version: 2022.1.0b16

    Schön, dass das Problem erkannt ist. Mit Version 2022.1.0b16 ist der Fehler auch.
    Freue mich auf die Version mit dem Fix.

  3. FabioBaumgartner

    Mar 22, 2022 10:04

    Facing the same problem, also with 2022.1.0b4.2571

  4. Ironbell

    Feb 22, 2022 15:29

    Same issue, persists even after deleting the library. Unity Version 2022.1.0b4.2571

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