c# - OpenCVSharp : Unable to load DLL 'OpenCvSharpExtern'

Question

我已经在我的项目中使用 NuGet 管理器安装了最新的 OpenCVSharp 2 (2.4.10.201...)。与 OpenCVSharp.CvMat 相关的一切工作正常(加载、操作等)所以我确信安装是正确的。

但是我根本无法使用 OpenCVSharp.CPlusPlus! 问题是它没有加载 OpenCvSharpExtern.dll。

try-catch block 显示的错误:

try
{
    Mat mat = new Mat();
} catch (Exception err)
{
    Console.WriteLine( err );
}

System.TypeInitializationException: The type initializer for 'OpenCvSharp.CPlusPlus.Mat' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'OpenCvSharpExtern': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at OpenCvSharp.CPlusPlus.NativeMethods.core_Mat_sizeof()
   at OpenCvSharp.CPlusPlus.Mat..cctor()
   --- End of inner exception stack trace ---
   at OpenCvSharp.CPlusPlus.Mat..ctor()
   at MainClass.Main() in C:\Users\kotsias\Documents\Visual Studio 2015\Projects\MyCVSharp\ConsoleApplication1\Test.cs:line 14

OpenCvSharpExtern.dll IS 与我的 .exe 一起部署在以下子文件夹中:

..\dll\x86

&

..\dll\x64

如果我手动将 x64 .dll 复制到与我的 .exe 相同的文件夹中，我仍然会遇到上述相同的错误。如果我复制 x86 .dll，我会得到一个不同的错误:

System.TypeInitializationException: The type initializer for 'OpenCvSharp.CPlusPlus.Mat' threw an exception. ---> System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
   at OpenCvSharp.CPlusPlus.NativeMethods.core_Mat_sizeof()
   at OpenCvSharp.CPlusPlus.Mat..cctor()
   --- End of inner exception stack trace ---
   at OpenCvSharp.CPlusPlus.Mat..ctor()
   at MainClass.Main() in C:\Users\kotsias\Documents\Visual Studio 2015\Projects\MyCVSharp\ConsoleApplication1\Test.cs:line 14

Answer 1

安装“OpencvSharp{version} nuget”包是不够的。您还必须安装“OpencvSharp{version}.runtime.{operating_system}”包。

例如，在我的例子中，我必须安装以下 Nuget 包:

• OpencvSharp4
• OpencvSharp4.runtime.win