So, I'm trying to compile this project. What's happening is that I'm getting this error code: Code: ld: 6 duplicate symbols for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) No I checked if there were any duplicates in the compile sources section. There was nothing. And in the class which I had added, I had imported the .h file. Please help me.