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Fixed in 2019.3.X



Found in



Issue ID




[Scripting] MissingMethodException errors are thrown on selecting object after updating the API



MissingMethodException errors are thrown on selecting object after updating the API.

Steps to repro:
1. Open the attached project.
2. Click on Upgrade > Select "I made a backup, Go Ahead".
3. Open "Main" scene.
4. Select the Sphere game object in the Hierarchy.

Actual Result:
MissingMethodException errors are thrown in the console.

Expected Result:
No error occurs in the console.

Reproducible in:
2019.3.0a12, 2019.3.0a3.

Working Fine in:
2019.3.0a2, 2019.2.0f1.

Windows & Mac 10.14.

Reported similar bug:
Current bugs regression, repro steps and stack trace are different from 1108911.

Stack trace:
MissingMethodException: void UnityEngine.UnityAPICompatibilityVersionAttribute..ctor(string,string[])
System.MonoCustomAttrs.GetCustomAttributesBase (System.Reflection.ICustomAttributeProvider obj, System.Type attributeType, System.Boolean inheritedOnly) (at <ad04dee02e7e4a85a1299c7ee81c79f6>:0)
System.MonoCustomAttrs.GetCustomAttributes (System.Reflection.ICustomAttributeProvider obj, System.Type attributeType, System.Boolean inherit) (at <ad04dee02e7e4a85a1299c7ee81c79f6>:0)
System.Reflection.Assembly.GetCustomAttributes (System.Type attributeType, System.Boolean inherit) (at <ad04dee02e7e4a85a1299c7ee81c79f6>:0)
UnityEditor.Localization.Editor.LocalizationGroup.initialize (System.Reflection.Assembly assembly) (at <2c7108252b3f412abf2ec8c94fb7c234>:0)
UnityEditor.Localization.Editor.LocalizationGroup..ctor (UnityEngine.Behaviour behaviour) (at <2c7108252b3f412abf2ec8c94fb7c234>:0)
UnityEditor.GenericInspector.OnOptimizedInspectorGUI (UnityEngine.Rect contentRect) (at <2c7108252b3f412abf2ec8c94fb7c234>:0)
UnityEditor.UIElements.InspectorElement+<>c__DisplayClass53_0.<CreateIMGUIInspectorFromEditor>b__0 () (at <2c7108252b3f412abf2ec8c94fb7c234>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Comments (4)

  1. Ludiq

    Jun 07, 2020 21:54

    This issue is not actually resolved, it still appears in Unity 2019.3.15f1.

  2. jasonbelmonti1002

    Apr 23, 2020 02:12

    Im also seeing this in Unity 2019.3.10f1

  3. victordevtb

    Apr 21, 2020 20:43

    This Errors happens when you have an Outdated version of Odin Inspector on Your project, I fixed it updating Odin Inspector. I'm on Unity 2019.3.9f

  4. MigrantP

    Apr 20, 2020 15:12

    I am seeing this now in Unity 2019.3.10f1. It was not occurring in 2019.3.9f1.

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