Apple Mach-0 Linker Error when building iOS app

Question

I am making an iOS and I just installed CocoaPods with RESTKit. I also have JSON files. The Apple Mach-O Linker Error happens when I build and only started when I installed the CocoaPods with RESTKit.

Here is part of the error report.

ld: 586 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

I have a similar symptom occur when I have added a static library that included another library that I already had in the project. It may be that you already have a library included in your project that is also included int the CocoaPods with RESTKit.