的TypeInitializationException （您看到的除外）被抛出时静态构造函数抛出一个异常，或当你试图访问一个类，其中静态​​构造函数抛出了一个异常 - 它的InnerException属性是包含已actualy抛出的异常的细节性 - 这就是你需要调查的异常

The TypeInitializationException (the exception that you are seeing) is thrown whenever a static constructor throws an exception, or whenever you attempt to access a class where the static constructor threw an exception - its InnerException property is the property that contains the detail of the exception that was actualy thrown - this is the exception that you need to investigate.

在您的屏幕截图这种情况下，这个问题似乎是，该DLLopencv_core240.dll无法被发现。这可能是由于多种原因

In this case from your screenshot the problem appears to be that the DLL "opencv_core240.dll" could not be found. This could be for a number of reasons

• 在该DLL找不到
• 在其中一个DLL的依赖找不到
• 在该DLL是不正确的图像格式（32位而不是64位）

我建议你看一看这个问题一>以查看是否有任何的建议，在那里帮助你。

I'd suggest that you take a look at this question to see if any of the suggestions on there help you.