'Emgu.CV.CvInvoke' threw an exception.

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.NET

Emgu-CV

OpenCV

I created imageHolder class:

public class ImageHolder : Image<Bgr, Byte>
   {
       private String imagePath;

       public ImageHolder(String path):base(path)
       {
          this.imagePath = path;
       }
       public String imgPathProperty
       {
           get
           { return imagePath; }
           set
           { imagePath = value; }
       }
   }

In this row:

 public ImageHolder(String path):base(path)

I get this exception:

InnerException: {"Unable to load DLL 'opencv_core242': The specified module could 
not be found. (Exception from HRESULT: 0x8007007E)"} 

The opencv_core242 is in the folder project,and platform target set to x86.

Any idea what might cause the exception and how to solve it?

Thank you in advance.