Search Issue Tracker

Fixed in 2020.2.X



Found in




Issue ID




Binary to YAML conversion error is thrown importing certain packages and Asset Serialization Mode is set to Force Text

Asset - Database


Steps to reproduce:
1. Create a new project
2. Under Edit > Project Settings > Editor, set Asset Serialization Mode to "Force Text"
3. Navigate to "" in a browser of your choice
4. Search for "Microsplat" by Jason Booth and press "Add to my Assets"
5. Click "Open in Unity"
6. Import the "MicroSplat" package from the Package Manager
7. Click "Import" again when prompted

Expected result: No error messages are thrown in the Console
Actual result: "Binary to YAML conversion: type UInt16 is unsupported" error is logged to the Console

Reproduced in: 2017.4.39f1, 2018.4.20f1, 2019.3.9f1, 2020.1.0b5, 2020.2.0a7

- The issue is not reproducible if Asset Serialization Mode is set to "Force Binary" or "Mixed"
- In 2020.1.0b5, two additional errors are thrown:
"Trying to access current progress scope, but the scope stack is empty"
"Trying to pop progress scope to invalid size (trying 1 stack size 0)"

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a11

Comments (2)

  1. Tonio1308

    May 05, 2021 17:53

    This issue is still present in 2019.4.25f1 but should be fixed.

  2. NathanielAH

    Jul 17, 2020 21:29

    This issue is present in 2019.4.1f1 LTS.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.