NullReferenceException
  at (wrapper managed-to-native) UnityEngine.Animation:AddClip (UnityEngine.Anim
ationClip,string,int,int,bool)

  at UnityEngine.Animation.AddClip (UnityEngine.AnimationClip clip, System.Strin
g newName, Int32 firstFrame, Int32 lastFrame) [0x00002] in C:\BuildAgent\work\84
2f9557127e852\Runtime\ExportGenerated\StandalonePlayer\Animations.cs:473