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Null exception on Edge.cs line 144 where is that came from ?

Discussion in 'Editor & General Support' started by Chocolade, Jan 9, 2019.

  1. Chocolade

    Chocolade

    Joined:
    Jun 19, 2013
    Posts:
    933
    I'm using Unity version 2018.3.0f2 Personal

    NullReferenceException: Object reference not set to an instance of an object

    Tried google didn't find any solution/s. someone said the error resolved it self other suggested to reinstall unity editor.

    Everything is working fine but this exception in the editor is annoying.
    I tried to search for Edge.cs in the Assets in the editor but no results.

    In the console window when I click on clear it's clearing and removing the exception but then when running the game it's showing the exception again.

    Any solution or ideas what can make this exception ?

    NullReferenceException: Object reference not set to an instance of an object
    UnityEditor.Graphs.Edge.WakeUp () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Edge.cs:114)
    UnityEditor.Graphs.Graph.DoWakeUpEdges (System.Collections.Generic.List`1[T] inEdges, System.Collections.Generic.List`1[T] ok, System.Collections.Generic.List`1[T] error, System.Boolean inEdgesUsedToBeValid) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:387)
    UnityEditor.Graphs.Graph.WakeUpEdges (System.Boolean clearSlotEdges) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:286)
    UnityEditor.Graphs.Graph.WakeUp (System.Boolean force) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:272)
    UnityEditor.Graphs.Graph.WakeUp () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:250)
    UnityEditor.Graphs.Graph.OnEnable () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:245)
     
    Chocolade, Jan 9, 2019
    #1

  2. JeffDUnity3D

    JeffDUnity3D

    Joined:
    May 2, 2017
    Posts:
    14,446
    Please provide steps to reproduce on a new project.
     
    JeffDUnity3D, Jan 9, 2019
    #2
    Chocolade likes this.

  3. Chocolade

    Chocolade

    Joined:
    Jun 19, 2013
    Posts:
    933
    Could not find any solution or a way to reproduce the exception. I can't think about anything I did that should make this exception.

    The only that helped so far was to close the project and re open it. Now the exception is not show so far.
    It's not a solution but for now it's working.
     
    Chocolade, Jan 9, 2019
    #3

  4. zIyaGtVm

    zIyaGtVm

    Joined:
    Dec 27, 2017
    Posts:
    131
    I also find this exception , after I'm doing some change to my timelineasset or some coding things with UnityEditor.GUID.Generate().
     
    zIyaGtVm, Jan 29, 2019
    #4

  5. nick-morhun

    nick-morhun

    Joined:
    May 12, 2015
    Posts:
    51
    I'm getting this when I hit Play. I'm sure it comes from the Animator tab. Somehow it got corrupted and shows no states, only the parameters of the last opened Controller.

    Unity 2019.2.8f1

    Code (CSharp):
    1. NullReferenceException: Object reference not set to an instance of an object
    2. UnityEditor.Graphs.Edge.WakeUp () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Edge.cs:114)
    3. UnityEditor.Graphs.Graph.DoWakeUpEdges (System.Collections.Generic.List`1[T] inEdges, System.Collections.Generic.List`1[T] ok, System.Collections.Generic.List`1[T] error, System.Boolean inEdgesUsedToBeValid) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:387)
    4. UnityEditor.Graphs.Graph.WakeUpEdges (System.Boolean clearSlotEdges) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:286)
    5. UnityEditor.Graphs.Graph.WakeUp (System.Boolean force) (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:272)
    6. UnityEditor.Graphs.Graph.WakeUp () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:250)
    7. UnityEditor.Graphs.Graph.OnEnable () (at C:/buildslave/unity/build/Editor/Graphs/UnityEditor.Graphs/Graph.cs:245)
    8.  
     
    nick-morhun, Mar 19, 2020
    #5