Apple Mach-O linker and multiple “undefined symbols” error using OpenCV

Question

I am currently a real beginner in Objective C, and I am developing an app using the framework OpenCV.

I am following a tutorial, but while builing the project, I got

Answer 1

The user can also add the libc++.tbd if libc++.dylib is not available in the "Link Binary With Libraries"

Thanks Mitesh