我有这个问题，并固定在我的Java代码中设置小写包名（也是在C＃线束参考命名空间）。在你的情况，你可以尝试并确认包名字是（完全一致）jnibridge（不JniBridge或其他任何东西）。

I had this issue, and fixed it setting the package name in lowercase in my Java code (and also the reference to the namespace in your C# harness). In your case, you might try and confirm the package name is (exactly) jnibridge (not JniBridge or anything else).