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Blender 2.8.2 FBX Error in Unity 2019.3.0f6

Discussion in 'Asset Importing & Exporting' started by mistergreen2016, Feb 19, 2020.

  1. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    The error sometimes go away if I check 'Include/Active Collection'. This includes everything like camera, lights, etc... in the FBX. But most times I get an error below.

    I imported an old Blender 2.7 FBX and it worked fine.

    Oh, my 2.8.3 FBX includes a texture, and skeleton animation.

    -------------------------


    NullReferenceException: Object reference not set to an instance of an object
    UnityEditor.ModelImporterClipEditor.FindNextAvailableName (System.String baseName) (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterClipEditor.cs:848)
    UnityEditor.ModelImporterClipEditor.MakeUniqueClipName (System.String name) (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterClipEditor.cs:872)
    UnityEditor.ModelImporterClipEditor.AddClip (UnityEditor.TakeInfo takeInfo) (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterClipEditor.cs:894)
    UnityEditor.ModelImporterClipEditor.SetupDefaultClips () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterClipEditor.cs:299)
    UnityEditor.ModelImporterClipEditor.OnEnable () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterClipEditor.cs:238)
    UnityEditor.AssetImporterTabbedEditor.OnEnable () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/AssetImporterTabbedEditor.cs:25)
    UnityEditor.ModelImporterEditor.OnEnable () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterEditor.cs:33)

    NullReferenceException: Object reference not set to an instance of an object
    UnityEditor.ModelImporterMaterialEditor.UpdateShowAllMaterialNameOptions () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterMaterialEditor.cs:124)
    UnityEditor.ModelImporterMaterialEditor.DoMaterialsGUI () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterMaterialEditor.cs:423)
    UnityEditor.ModelImporterMaterialEditor.OnInspectorGUI () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterMaterialEditor.cs:224)
    UnityEditor.AssetImporterTabbedEditor.OnInspectorGUI () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/AssetImporterTabbedEditor.cs:81)
    UnityEditor.ModelImporterEditor.OnInspectorGUI () (at /Users/builduser/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/ModelImporterEditor.cs:23)
    UnityEditor.UIElements.InspectorElement+<>c__DisplayClass55_0.<CreateIMGUIInspectorFromEditor>b__0 () (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/InspectorElement.cs:521)
    UnityEngine.GUIUtility:processEvent(Int32, IntPtr) (at /Users/builduser/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:187)
     
    Last edited: Feb 19, 2020
    mistergreen2016, Feb 19, 2020
    #1

  2. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    I did some testing. The armature animations with multiple 'action' is causing the error. I'll try to revert back to 2.8.0 to see if the problem persists.
     
    mistergreen2016, Feb 19, 2020
    #2

  3. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    Did more testing and looks like the problem is Unity version I'm using. It can't import more than one 'action'/animation.
    I'm going to update to Unity 2019.3.1
     
    mistergreen2016, Feb 19, 2020
    #3

  4. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    I updated but the problems persists EVEN though the bug fix in 2019.3.2 said it fixed the FBX animation issue.
     
    Last edited: Feb 19, 2020
    mistergreen2016, Feb 19, 2020
    #4

  5. BlackhawkAceX

    BlackhawkAceX

    Joined:
    Jan 24, 2015
    Posts:
    1
    Yup, that doesn't seem to be fixed at all.
     
    BlackhawkAceX, Feb 21, 2020
    #5

  6. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    I read the open bug report. It looks like there is a fix in 2020.1. I don’t know when that is released. How do we do animations in the meantime?
     
    mistergreen2016, Feb 21, 2020
    #6
    MentalGames likes this.

  7. MartinBarrette

    MartinBarrette

    Unity Technologies

    Joined:
    Oct 22, 2019
    Posts:
    26
    MartinBarrette, Feb 24, 2020
    #7
    MentalGames likes this.

  8. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
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    I tried this with 2018.3 which I installed already but it still doesn't work. It got the same error. I guess it is calling the same Model importer in 2019.3.
     
    mistergreen2016, Feb 24, 2020
    #8

  9. MartinBarrette

    MartinBarrette

    Unity Technologies

    Joined:
    Oct 22, 2019
    Posts:
    26
    It shouldn't the Model importer is per version. You are getting the exact same error:
    NullReferenceException: Object reference not set to an instance of an object
    UnityEditor.ModelImporterClipEditor.FindNextAvailableName (System.String baseName) (at
    Did you start with a fresh import or with an import with an existing meta file? If you are still reproducing this issue with 2018.3 I would encourage you to log a new issue with your content so that we could double check. Thank you!
     
    MartinBarrette, Feb 25, 2020
    #9

  10. mistergreen2016

    mistergreen2016

    Joined:
    Dec 4, 2016
    Posts:
    226
    Importing fbx into 2018.3 works fine. When I copy the fbx & meta files into 2019.3 assets folder, launch unity 2019.3, the error appears.
     
    mistergreen2016, Feb 25, 2020
    #10

  11. MartinBarrette

    MartinBarrette

    Unity Technologies

    Joined:
    Oct 22, 2019
    Posts:
    26
    I think the issue is that there has been a version update in the ModelImporter between 2018.3 and 2019.3 which will cause a re-import leading to you seeing the error. If you try with 2019.2 are you seeing the same issue? Thank you!
     
    MartinBarrette, Feb 25, 2020
    #11

  12. alpsoy

    alpsoy

    Joined:
    Aug 13, 2015
    Posts:
    5
    This happens when FBX has multiple actions; exporting FBX from blender with single action works ok.
     
    alpsoy, May 12, 2020
    #12