Question

我在我的ASP.NET项目中使用EmguCV进行面部检测。当我从Visual Studio运行项目时，一切正常。

然后我通过Folder profile发布了版本构建，然后将这个已发布的版本上传到smarterasp.net。

申请一般都在运作。但是当应用程序试图检测图像中的面部时，会抛出异常：

System.AggregateException: One or more errors occurred. ---> System.TypeInitializationException: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'cvextern': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at Emgu.CV.CvInvoke.RedirectError(CvErrorCallback errorHandler, IntPtr userdata, IntPtr prevUserdata)
   at Emgu.CV.CvInvoke..cctor()
   --- End of inner exception stack trace ---
   at Emgu.CV.Image`2.AllocateData(Int32 rows, Int32 cols, Int32 numberOfChannels)
   at Emgu.CV.Image`2.set_Bitmap(Bitmap value)
   at FaceDetection.FaceDetector.GetFaces(Bitmap img) in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FaceDetection\FaceDetector.cs:line 22
   at ImageModification.FaceBlurModificator.Modify(Image img) in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\ImageModification\FaceBlurModificator.cs:line 21
   at FacelessBrowserTT.Controllers.HomeController.<>c__DisplayClass4_0.<PreparePage>b__1() in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FacelessBrowserTT\Controllers\HomeController.cs:line 81
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at FacelessBrowserTT.Controllers.HomeController.<PreparePage>d__4.MoveNext() in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FacelessBrowserTT\Controllers\HomeController.cs:line 86
---> (Inner Exception #0) System.TypeInitializationException: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'cvextern': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at Emgu.CV.CvInvoke.RedirectError(CvErrorCallback errorHandler, IntPtr userdata, IntPtr prevUserdata)
   at Emgu.CV.CvInvoke..cctor()
   --- End of inner exception stack trace ---
   at Emgu.CV.Image`2.AllocateData(Int32 rows, Int32 cols, Int32 numberOfChannels)
   at Emgu.CV.Image`2.set_Bitmap(Bitmap value)
   at FaceDetection.FaceDetector.GetFaces(Bitmap img) in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FaceDetection\FaceDetector.cs:line 22
   at ImageModification.FaceBlurModificator.Modify(Image img) in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\ImageModification\FaceBlurModificator.cs:line 21
   at FacelessBrowserTT.Controllers.HomeController.<>c__DisplayClass4_0.<PreparePage>b__1() in D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FacelessBrowserTT\Controllers\HomeController.cs:line 81
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()<---

有趣的是，我的本地路径中的Home Controller和其他文件是例外：

D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FacelessBrowserTT\Controllers\HomeController.cs
D:\Programming\C#Projs\FacelessBrowserTT_DIV_CONTAINER\FaceDetection\FaceDetector.cs
...

也许这就是原因？为什么在已部署的应用程序中某处有我的本地路径？

我以前从未部署过一个项目，所以100％我犯了一些愚蠢的错误。我做错了什么？

Answer 1

简单的答案是，无论你的exe文件在哪里，EmguCV DLL和OpenCV DLL的 ALL 也必须是。在开发过程中发生的事情与部署无关。

我发现使用我的EXE将EmguCV DLL放在文件夹中很方便，并且在一个名为x64的文件夹中放置所有OpenCV dll。 x64文件夹与您的exe文件夹在同一文件夹中。

道格

Emgu CV无法加载DLL＆＃39; cvextern＆＃39;在部署的项目中

1 个答案: