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Fixed in 2021.1.X
Votes
0
Found in
2020.2.0b10
2021.1.0a2
2021.1.0a7
Issue ID
1295140
Regression
Yes
[Linux][UI Toolkit] NullReferenceException appear on enabling the "Open files in Editor once created" while creating UI Toolkit
Editor thrown NullReferenceException on enabling the "Open files in Editor once created" while creating UI Toolkit window refer to the attached video
Steps to repro:
1. Create a new Project.
2. Project > Create > UI Toolkit >Editor window
3. Add C#, UXML, USS file name
4. Enabling the "Open files in Editor once created"
5. Click on the Confirm button
Actual result: NullReferenceException appear on enabling the "Open files in Editor once created" while creating UI Toolkit window
Expected result: "UI Toolkit window" create and open gracefully
Reproducible in:
2021.1.0a7, 2021.1.0a2, 2020.2.0b13, 2020.2.0b10
Working Fine in:
2021.1.0a1, 2020.2.0b9
Environment: Occurs only on Linux
Verified on Ubuntu 18.04 LTS
Stack trace:
NullReferenceException: Object reference not set to an instance of an object
UnityEngine.UIElements.StyleSheets.StyleSelectorHelper.FastLookup (System.Collections.Generic.IDictionary`2[TKey,TValue] table, System.Collections.Generic.List`1[T] matchedSelectors, UnityEngine.UIElements.StyleMatchingContext context, System.String input, UnityEngine.UIElements.StyleSheets.SelectorMatchRecord& record) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/StyleSheets/StyleSelectorHelper.cs:199)
UnityEngine.UIElements.StyleSheets.StyleSelectorHelper.FindMatches (UnityEngine.UIElements.StyleMatchingContext context, System.Collections.Generic.List`1[T] matchedSelectors) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/StyleSheets/StyleSelectorHelper.cs:226)
UnityEngine.UIElements.VisualTreeStyleUpdaterTraversal.TraverseRecursive (UnityEngine.UIElements.VisualElement element, System.Int32 depth) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeStyleUpdater.cs:236)
UnityEngine.UIElements.StyleSheets.HierarchyTraversal.Recurse (UnityEngine.UIElements.VisualElement element, System.Int32 depth) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/HierarchyTraversal.cs:24)
UnityEngine.UIElements.VisualTreeStyleUpdaterTraversal.TraverseRecursive (UnityEngine.UIElements.VisualElement element, System.Int32 depth) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeStyleUpdater.cs:260)
UnityEngine.UIElements.StyleSheets.HierarchyTraversal.Recurse (UnityEngine.UIElements.VisualElement element, System.Int32 depth) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/HierarchyTraversal.cs:24)
UnityEngine.UIElements.VisualTreeStyleUpdaterTraversal.TraverseRecursive (UnityEngine.UIElements.VisualElement element, System.Int32 depth) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeStyleUpdater.cs:260)
UnityEngine.UIElements.StyleSheets.HierarchyTraversal.Traverse (UnityEngine.UIElements.VisualElement element) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/HierarchyTraversal.cs:11)
UnityEngine.UIElements.VisualTreeStyleUpdater.ApplyStyles () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeStyleUpdater.cs:108)
UnityEngine.UIElements.VisualTreeStyleUpdater.Update () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeStyleUpdater.cs:91)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeUpdater.cs:154)
UnityEngine.UIElements.Panel.ValidateLayout () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Panel.cs:880)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:459)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:209)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:74)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:28)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at /home/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)
UnityEditor.EditorWindow:GetWindow()
aaaa:ShowExample() (at Assets/Editor/aaaa.cs:12)
UnityEditor.HostView:OnEnable() (at /home/bokken/buildslave/unity/build/Editor/Mono/HostView.cs:152)
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