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Issue ID




[UI Toolkit] An error is thrown in Console window when switching Editor’s Code Optimization mode

Package: UI Toolkit


Reproduction steps:
1. Create a new Unity project
2. Open the Package Manager (Window->Package Manager)
3. Add UI Toolkit package from git URL ("+" > Add package from git URL... > "com.unity.ui" > Add)
4. Switch the Editor’s Code Optimization mode to Release or Debug in the bottom right of the Unity Editor Status Bar
5. Observe the Console window

Expected result: no errors appear in the Console window
Actual result: the "The requested operation cannot be performed on a file with a user-mapped section open. 0 file(s) copied." error is logged

Reproducible with: 1.0.0-preview.14 (2021.1.0a8, 2021.1.0b9), UI Builder 1.0.0-preview.14 (2021.2.a9)
Not reproducible with: 1.0.0-preview.14 (2020.2.6f1), UI Builder 1.0.0-preview.9 (2021.1.0a1)
Could not test with: 2018.4, 2019.4 (UI Toolkit is not introduced yet), 2021.1.0a1-0a7 and 2021.2 (due to UI Toolkit's errors)

  1. Resolution Note:

    Fixed in: 2022.1.0a1

  2. Resolution Note:

    Fixed in: 2021.2.0b3

  3. Resolution Note:

    Fixed in: 2021.1.16f1

Comments (5)

  1. microteq

    Jun 17, 2021 13:00

    Same for me with unity version 2021.1.10f1

  2. ADoucette

    May 27, 2021 17:28

    Occurring in 2021.1.7f1 when I try to switch build platforms.

  3. RedHillbilly

    May 19, 2021 10:34

    Same issue here, any news?

  4. xXPancakeXx

    May 12, 2021 19:42

    Same on my project on version 2021.1.6f1
    Any improvements on this one?

  5. M3Nd1

    Mar 24, 2021 04:39

    Its happening since i updated to 2021.1.0f1 from 2020.2.5f1.
    Im using UI Toolkit but i cant know for sure that package is causing the issue

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