Unity Issue Tracker - "ArgumentNullException: Value cannot be null. Parameter name: _unity_self" error becomes visible in the "Console" after clearing its value from the "Inspector" tab

Won't Fix

Votes

17

Found in

2023.1.0b9

2023.2.0a6

Issue ID

UUM-30377

Regression

No

"ArgumentNullException: Value cannot be null. Parameter name: _unity_self" error becomes visible in the "Console" after clearing its value from the "Inspector" tab

Mar 16, 2023

Steps to reproduce:
# Create a project
# Add 2D/3D game object
# Go to "Inspector" tab
# Select any component
# Click on preset icon
# Verify, that "Select Preset" window opens
# Click "Open Inspector" icon
# Verify, that "Inspector" sections becomes visible
# Find "Create New XXXXX Preset ..." line
# Open the same preset window
# Select preset which was created
# Verify, that its data is displayed in the Inspector section
# Find "Clear the current value" line and click it
# Observe Console section

Actual Result: Console displays an error.

Expected Result: Inspector tab should be cleared out without the errors. Video added in the "Attachments" section.

Reproducible with: 2023.2.0a6, 2023.1.0b9.

Not reproducible with: 2022.2.12f1, 2021.3.20f1, 2020.3.46f1. These streams have old UI.

Error:

ArgumentNullException: Value cannot be null.
Parameter name: _unity_self
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateRevision () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/Bindings/BindingExtensions.cs:515)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.ResetUpdate () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/Bindings/BindingExtensions.cs:551)
UnityEditor.UIElements.Bindings.SerializedObjectBindingBase.ResetUpdate () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/Bindings/BindingExtensions.cs:1232)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContextUpdater.Update () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/Bindings/BindingExtensions.cs:1448)
UnityEngine.UIElements.VisualTreeBindingsUpdater.UpdateBindings () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Bindings/VisualTreeBindingsUpdater.cs:330)
UnityEngine.UIElements.VisualTreeBindingsUpdater.Update () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Bindings/VisualTreeBindingsUpdater.cs:293)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/VisualTreeUpdater.cs:113)
UnityEngine.UIElements.Panel.UpdateBindings () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Panel.cs:1005)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:256)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:105)
UnityEditor.RetainedMode.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/RetainedMode.cs:55)

Resolution Note:

This has been fixed by an unknown PR.
Confirmed that 2023.1.0b9 has the issue however later versions do not.
Tested 2023.1.5f1, 2023.2.0b9 and 2023.3.0a1.

Note: This bug is only looking into the error with regards to the preset window, not the error message in general which can occur under many different circumstances.

Comments (11)

Macroblitz

Sep 26, 2023 05:45

Same here with 2022.3.7f1

My error started appearing after I changed a property name in the code of my ScriptableObject script.

ArgumentNullException: Value cannot be null.
Parameter name: _unity_self
UnityEditor.SerializedObject.FindProperty (System.String propertyPath) (at <97436df440ca462884c5332c1d8ebbe7>:0)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.BindPropertyRelative (UnityEngine.UIElements.IBindable field, UnityEditor.SerializedProperty parentProperty) (at <f90f2d9cb28d4393afc1338e6af635e0>:0)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.BindTree (UnityEngine.UIElements.VisualElement element, UnityEditor.SerializedProperty parentProperty) (at <f90f2d9cb28d4393afc1338e6af635e0>:0)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.ContinueBinding (UnityEngine.UIElements.VisualElement element, UnityEditor.SerializedProperty parentProperty) (at <f90f2d9cb28d4393afc1338e6af635e0>:0)
UnityEditor.UIElements.Bindings.DefaultSerializedObjectBindingImplementation+BindingRequest.Bind (UnityEngine.UIElements.VisualElement element) (at <f90f2d9cb28d4393afc1338e6af635e0>:0)
UnityEngine.UIElements.VisualTreeBindingsUpdater.Update () (at <9d7fc877145d4138982bf12cdd3484c6>:0)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at <9d7fc877145d4138982bf12cdd3484c6>:0)
UnityEngine.UIElements.Panel.UpdateBindings () (at <9d7fc877145d4138982bf12cdd3484c6>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at <9d7fc877145d4138982bf12cdd3484c6>:0)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at <9d7fc877145d4138982bf12cdd3484c6>:0)
UnityEditor.RetainedMode.UpdateSchedulers () (at <f90f2d9cb28d4393afc1338e6af635e0>:0)
shuan_xy

Sep 14, 2023 18:15

same issue with unity 2022.3.8f1, will unity fix this?
If I select a image or camera in the hierarchy and click play, everything looks fine.
If I select a scripted game object, it give me a list of errors. However the game still seems to run just fine. The list of error looks quite annoying though.
marcosatienzagd

Sep 11, 2023 18:50

I have a similar issue, version is 2022.3.0f1. Should I update?
samaelxxi

Aug 19, 2023 17:52

Same bug when an ScriptableObject is selected in Inspector and Play pressed. 2022.3.7f1
RasmusMolckNilsson

Jul 28, 2023 11:22

I get this error in 2022.3.5f1 when starting game while object is selected. Project was updated from 2021.1.
unity_0GlwZ4j_Ggr0lA

Jul 20, 2023 11:26

I've had the same issue with:
2022.35f1

With:
scriptable object selected and with inspector focus
SO has serialized fields

Work around - don't have SO viewed in inspector when pressing play in editor.
NomarPimentel

Jun 29, 2023 22:11

I have the same problem when entering game mode with a Scriptable Object selected and displayed in the inspector. 2022.3.2f1
amateurd

Jun 09, 2023 17:10

Also affects 2022.3.1f1
TRI99ER_

May 08, 2023 16:36

Same in 2022.2.16f1.
esco1979

May 04, 2023 05:50

I have this same issues in 2022.2.17F1; it happens when I have a script shown in the inspector. I have tried even removing vars one by one, and I was still getting these errors with normal public int vars (one or two of them) and nothing else in the script code wise.