“NullReferenceException” error is thrown in the Console when extracting Variable to Global variable via context menu in UI Builder

Unity: UI Builder

Open

6.6.X

In Progress

6.7.X

Steps to reproduce:
1. Create new Unity project
2. Open UI Builder window
3. Add Visual Element in Hierarchy window
4. Add a float Variables
5. Right-click on float Variable
6. Select Extract to Global variable
7. Observe the Console window

Actual results: “NullReferenceException: Object reference not set to an instance of an object” error thrown in the Console

Expected results: No errors thrown in the Console

Reproducible with versions: 6000.6.0a2, 6000.6.0a3
Can’t test with versions: 6000.5.0b4, 6000.6.0a1 (No Variables section available for Hierarchy elements)

Tested on (OS): macOS Silicon Tahoe 26.4 (M1)

NullReferenceException: Object reference not set to an instance of an object
Unity.UI.Builder.BuilderInspectorVariables.ExtractToGlobalVariable () (at /Users/bokken/build/output/unity/unity/Modules/UIBuilder/Editor/Builder/Inspector/BuilderInspectorVariables.cs:83)
Unity.UIToolkit.Editor.VariablesInspector+<>c__DisplayClass65_0.<BuildContextMenu>b__0 (UnityEngine.UIElements.DropdownMenuAction _) (at /Users/bokken/build/output/unity/unity/Modules/UIToolkitAuthoringEditor/Managed/Hierarchy/Selection/Editor/VariablesInspector.cs:581)
UnityEngine.UIElements.DropdownMenuAction.Execute () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/DropdownMenu.cs:224)
UnityEditor.UIElements.EditorMenuExtensions+<>c__DisplayClass0_0.<PrepareMenu>b__0 () (at /Users/bokken/build/output/unity/unity/Editor/Mono/UIElements/EditorMenuExtensions.cs:36)
UnityEditor.GenericMenu.CatchMenu (System.Object userData, System.String[] options, System.Int32 selected) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUI/GenericMenu.cs:164)
UnityEngine.StackTraceUtility:ExtractStringFromExceptionInternal(Object, String&, String&) (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/StackTrace.cs:50)

“NullReferenceException” error is thrown in the Console when extracting Variable to Global variable via context menu in UI Builder

Unity: UI Builder

Open

In Progress

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“NullReferenceException” error is thrown in the Console when extracting Variable to Global variable via context menu in UI Builder

Unity: UI Builder

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Open

In Progress

Resolution Notes

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Have a workaround or additional info about this issue?