long error message "Object reference not set to an instance of an object"

Scripting
,
1

I keep getting this error message im not sure what it means or how to fix it

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Graphs.Edge.WakeUp () (at <646995db22024662a460758c77558643>:0)
UnityEditor.Graphs.Graph.DoWakeUpEdges (System.Collections.Generic.List1[T] inEdges, System.Collections.Generic.List1[T] ok, System.Collections.Generic.List`1[T] error, System.Boolean inEdgesUsedToBeValid) (at <646995db22024662a460758c77558643>:0)
UnityEditor.Graphs.Graph.WakeUpEdges (System.Boolean clearSlotEdges) (at <646995db22024662a460758c77558643>:0)
UnityEditor.Graphs.Graph.WakeUp (System.Boolean force) (at <646995db22024662a460758c77558643>:0)
UnityEditor.Graphs.Graph.WakeUp () (at <646995db22024662a460758c77558643>:0)
UnityEditor.Graphs.Graph.OnEnable () (at <646995db22024662a460758c77558643>:0)

2

This specific error, coming from this location (eg, NOT your code, such as UnityEditor.Graphs), is often fixed by either Reset Layouts (upper right) or else Right-click Project, Reimport-All.

Otherwise, if the error is in your code (the above does NOT look like it is your code), it’s always the same answer:

The answer is always the same… ALWAYS!

How to fix a NullReferenceException error

https://forum.unity.com/threads/how-to-fix-a-nullreferenceexception-error.1230297/

Three steps to success:

  • Identify what is null ← any other action taken before this step is WASTED TIME
  • Identify why it is null
  • Fix that