It's an existing standalone project trying to build for Universal 10 for the first time
There's also these errors at the bottom
The class UnityEngine.NetworkPlayer could not be loaded, used in UnityEngine, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.FsmEventData could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.Fsm could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.FsmLog could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.Fsm could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.FsmState could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.Fsm could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class BitConverter could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.FsmStateAction could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class HutongGames.PlayMaker.Fsm could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class PlayMakerFSM could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class PlayMakerFSM could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
The class PlayMakerFSM could not be loaded, used in PlayMaker, Version=1.6.0.0, Culture=neutral, PublicKeyToken=null
Thanks for helping!