I am getting following errors.
libxml/tree.h no such file or directory
I have already added libxml2.dylib to my pro         
        
1) I added libxml file to the Build Phases.follow this link
2) I added Other Linker Flags as -ObjC (For both project and test project targets)
3) I setup Header Search Path as "${SDKROOT}/usr/include/libxml2" (Don't forget double quote in either side) (For both project and test project targets)
One of them will solve the issue. If not you have to apply all three of the above.