i used the project, in the below link
http://aptogo.co.uk/2011/09/opencv-framework-for-ios/
when i integrate that project in to my project or vice versa error comes up
Errors image is shown below
If i run the sample it works fine but when i want to use “OpenCVClientViewController” then it shows an error
I integrated both UIImage+OpenCV.h and UIImage+OpenCV.mm also

Thanks a lot in advance
I guess your implementation file is
.m(Objective-C), although it should be.mm(Objective-C++).