NSLog shows the error “expression result unused” and not working. iphone?

Question

i am simply trying to NSLog something on xcode and it gives the error "Expression result unused" , i cant print anything using NSLog. actually i changed the Build configuration in edit scheme to Debug. i dont know what is actually the error?

need some help

Answer 1

I had similar status. My reason was next code.
#define NSLog
Please check there is any redefinition of NSLog.