Mono（Linux，C＃）：无法找到同一文件夹中的DLL（System.DllNotFoundException）

Question

我正在尝试使用mono来运行我的Raspberry Pi 3上的C＃程序。程序正确启动，但是一旦我到达使用某些OpenCV库的程序，程序错误就会出现以下输出：

Unhandled Exception:
System.TypeInitializationException: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. ---> System.DllNotFoundException: opencv_core220
  at (wrapper managed-to-native) Emgu.CV.CvInvoke:cvRedirectError (Emgu.CV.CvInvoke/CvErrorCallback,intptr,intptr)
  at Emgu.CV.CvInvoke..cctor () [0x00023] in <4f43ef68be294203a100f85f9cebb2b6>:0 
   --- End of inner exception stack trace ---
  at Emgu.CV.Image`2[TColor,TDepth].AllocateData (System.Int32 rows, System.Int32 cols, System.Int32 numberOfChannels) [0x0002e] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at Emgu.CV.Image`2[TColor,TDepth].set_Bitmap (System.Drawing.Bitmap value) [0x00050] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at Emgu.CV.Image`2[TColor,TDepth]..ctor (System.Drawing.Bitmap bmp) [0x00008] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at App.Program.Main (System.String[] args) [0x00122] in <b44d2f4f9f83495091806ba3e6a1570f>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. ---> System.DllNotFoundException: opencv_core220
  at (wrapper managed-to-native) Emgu.CV.CvInvoke:cvRedirectError (Emgu.CV.CvInvoke/CvErrorCallback,intptr,intptr)
  at Emgu.CV.CvInvoke..cctor () [0x00023] in <4f43ef68be294203a100f85f9cebb2b6>:0 
   --- End of inner exception stack trace ---
  at Emgu.CV.Image`2[TColor,TDepth].AllocateData (System.Int32 rows, System.Int32 cols, System.Int32 numberOfChannels) [0x0002e] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at Emgu.CV.Image`2[TColor,TDepth].set_Bitmap (System.Drawing.Bitmap value) [0x00050] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at Emgu.CV.Image`2[TColor,TDepth]..ctor (System.Drawing.Bitmap bmp) [0x00008] in <4f43ef68be294203a100f85f9cebb2b6>:0 
  at App.Program.Main (System.String[] args) [0x00122] in <b44d2f4f9f83495091806ba3e6a1570f>:0 

提到的库“opencv_core220”是一个dll，它位于与我使用mono执行的exe相同的目录中。我该怎么做才能解决这个问题？到目前为止我从未使用过单声道，但我读过你不能在linux上使用dll，比如在windows上，但你必须使用so-files。但我不知道如何从我的dlls中获取它们。该程序完全适用于Windows。

Answer 1

将.dll文件转换为.so文件并将.so文件添加到/ usr / lib。然后运行你的exe并检查