Search Issue Tracker

Duplicate

Duplicate in 2.2.X

Votes

0

Found in [Package]

2.2.0-pre.3

Issue ID

BAPPUI-46

Regression

Yes

An "XmlSchemaException" error is thrown when updating UXML schema with App UI package installed

Package: App UI

-

How to reproduce:
1. Create and open a new project
2. Open package manager (Window > Package management > Package Manager)
3. Install App UI package (com.unity.dt.app-ui)
4. In the app menu, navigate to Assets > Update UXML Schema
5. Observe the Console

Actual result: An “XmlSchemaException: The simpleType 'Unity.AppUI.UI:VariantType' has already been declared.” error is thrown
Expected result: No errors are thrown

Reproducible with: 1.2.0 (6000.4.0a1), 2.2.0-pre.3 (6000.4.0a1, 6000.4.0b1, 6000.5.0a3)
Not reproducible with: 2.2.0-pre.3 (6000.0.64f1, 6000.3.0a6)

Reproducible on: macOS 26.1 (M1 Pro)
Not reproducible on: No other environments tested

  1. This is a duplicate of issue #UUM-126191

    Error "UXML validation error: Line 3, Position 6: The element 'VisualElement' in namespace 'UnityEngine.UIElements' has incomplete content." is present when running the test for Schema Definitions

  1. Resolution Note:

    Thank you for reporting a bug to Unity.

    We have reviewed the issue and found it is a duplicate of an existing bug already logged in our system. To keep things organized and ensure the issue is properly prioritized, we have linked your report to the original case.

    We will now close this report as a duplicate, but the original bug remains open and under review. Your input has been noted and helps us better understand the impact of the issue. If anything changes regarding its severity or impact, please let us know.

    Thank you for helping us improve Unity!

  2. Resolution Note (2.2.X):

    Thank you for reporting a bug to Unity.

    We have reviewed the issue and found it is a duplicate of an existing bug already logged in our system. To keep things organized and ensure the issue is properly prioritized, we have linked your report to the original case.

    We will now close this report as a duplicate, but the original bug remains open and under review. Your input has been noted and helps us better understand the impact of the issue. If anything changes regarding its severity or impact, please let us know.

    Thank you for helping us improve Unity!

Log in to vote on this issue

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.

Latest issues

See all new issues