iPhone相机启动崩溃，很少但模糊的错误

Question

我应该注意到这是一个增强现实项目。应用程序与Mono2x完美配合。已更改为IL2CPP，因为应用商店需要64位。启动画面仍在播放，但现在当相机尝试启动时，应用程序崩溃。

我正在实例化代表玩家得分的对象。这与Mono2X完美配合。 我也有一个非常简单的碰撞，之前也很好。

我得到了非常模糊的错误：

ArgumentException: The thing you want to instantiate is null.
at UnityEngine.AssetBundle.LoadAsset_Internal (System.String name,  
System.Type type) [0x00000] in <filename unknown>:0
at UnityEngine.Object.Instantiate (UnityEngine.Object original)   
[0x00000] in <filename unknown>:0 
at UnityEngine.Object.Instantiate (UnityEngine.Object original) 
[0x00000] in <filename unknown>:0 
at ScoreHandler.OnCollisionEnter (UnityEngine.Collision col) [0x00000]     
in <filename unknown>:0 

(Filename: currently not available on il2cpp Line: -1)

Unhandled Exception: System.ArgumentException: The thing you want to    
instantiate is null.
at UnityEngine.AssetBundle.LoadAsset_Internal (System.String name,  
System.Type type) [0x00000] in <filename unknown>:0
at UnityEngine.Object.Instantiate (UnityEngine.Object original) 
[0x00000] in <filename unknown>:0 
at UnityEngine.Object.Instantiate (UnityEngine.Object original) 
[0x00000] in <filename unknown>:0 
at ScoreHandler.OnCollisionEnter (UnityEngine.Collision col) [0x00000]  
in <filename unknown>:0 

我在加载ARMarker时也遇到错误。尽管标记成功加载。

ARController (native): [error]Loading single AR marker from buffer,   
width 55.000000.
ARController (native): [error]ARController::addMarker(): called
ARController (native): ARController::addMarker(): Added marker (UID=0), 
total markers loaded: 1, exiting, returning true
ARController: Starting AR.

我更关注导致程序崩溃的ArgumentException。