异常：JNI:Init'd AndroidJavaClass，ptr为null

我每次都会犯这个错误。我该怎么修呢

Exception: JNI: Init'd AndroidJavaClass with null ptr!
UnityEngine.AndroidJavaClass..ctor (IntPtr jclass) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:539)
UnityEngine.AndroidJavaObject.get_JavaLangClass () (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:517)
UnityEngine.AndroidJavaObject.FindClass (System.String name) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:508)
UnityEngine.AndroidJavaObject._AndroidJavaObject (System.String className, System.Object[] args) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:110)
UnityEngine.AndroidJavaObject..ctor (System.String className, System.Object[] args) (at C:/BuildAgent/work/d63dfc6385190b60/artifacts/EditorGenerated/AndroidJava.cs:17)
AdmobVNTIS.Awake () (at Assets/AdmobVNTIS/AdmobVNTIS.cs:55)

而且，这个错误； 我认为这是一个java问题，它有相同的解决方案

Exception: JNI: Init'd AndroidJavaClass with null ptr!
UnityEngine.AndroidJavaClass..ctor (IntPtr jclass) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:539)
UnityEngine.AndroidJavaObject.get_JavaLangClass () (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:517)
UnityEngine.AndroidJavaObject.FindClass (System.String name) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:508)
UnityEngine.AndroidJavaObject._AndroidJavaObject (System.String className, System.Object[] args) (at C:/BuildAgent/work/d63dfc6385190b60/Runtime/Export/AndroidJavaImpl.cs:110)
UnityEngine.AndroidJavaObject..ctor (System.String className, System.Object[] args) (at C:/BuildAgent/work/d63dfc6385190b60/artifacts/EditorGenerated/AndroidJava.cs:17)
AdmobVNTIS_Interstitial.initializeInterstitial () (at Assets/AdmobVNTIS/AdmobVNTIS_Interstitial.cs:39)
AdmobVNTIS_Interstitial.Awake () (at Assets/AdmobVNTIS/AdmobVNTIS_Interstitial.cs:29)

这就像是同一个错误，但有点不同

我的游戏细节：

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我做了一个基本的2d游戏hwo只包含ongui功能我添加了facebook sdk，谷歌广告sdk，我从sdk管理器安装了所有android sdk，我安装了admob插件vntis。但我还没有用过facebook sdk。我的电脑是64位的。

只有在编辑器中才会出现此错误。如果您想摆脱它，请使用

#if UNITY_ANDROID
    ...
#endif

你需要一个真正的安卓设备来运行那一行特定的代码

尝试这样做：

#if UNITY_ANDROID && !UNITY_EDITOR
//do something here
#endif

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您能显示实际的JNI实现代码吗？如果您用四个空格缩进代码，而不是用一个反勾“````````，那么行间就不会有空格