[WSA] Exceptions in WinRTBridge.winmd and UnityEngineProxy.ni.DLL

This is a known issue, while we're working on it, it's not clear when the fix will land.

We also contacted the author of DoTween regarding this problem, he's also working on it as far as I know.

Here's the workaround you could do.
* Clone DoTween - https://github.com/Demigiant/dotween
* In this package code, some logic depends on the thrown exception, particular issue above rises when exception is thrown by Unity native part instead of C# code, thus to fix this, you need to ensure that exceptions are throw in C# instead of native part.
For ex.,

In _dotween.assembly\dotween\shortcutextensions.cs
create a function

Code (csharp):

1.  
2. private static Transform ValidateTransform(Transform target)
3.             {
4.                     if (target == null)
5.                             throw new System.NullReferenceException();
6.                         return target;
7.             }
8.  

Change places where transform property is being accessed, for ex.,

Code (csharp):

1.  
2.         public static Tweener DOLocalMoveY(this Transform target, float endValue, float duration, bool snapping = false)
3.         {
4.             return DOTween.To(() => target.localPosition, x => target.localPosition = x, new Vector3(0, endValue, 0), duration)
5.                 .SetOptions(AxisConstraint.Y, snapping).SetTarget(target);
6.         }
7.  

change to

Code (csharp):

1.  
2. public static Tweener DOLocalMoveY(this Transform target, float endValue, float duration, bool snapping = false)
3.                 {
4.             return DOTween.To(() => ValidateTransform(target).localPosition, x => ValidateTransform(target).localPosition = x, new Vector3(0, endValue, 0), duration)
5.                 .SetOptions(AxisConstraint.Y, snapping).SetTarget(ValidateTransform(target));
6.         }
7.  
8.  

this will ensure that NullReferenceException is thrown by C# when target is null.

Hope that helps.