Clang Error: Linker Command Failed With Exit Code 1

When you have a Clang error, it means that the linker command failed. This is usually a result of a duplicate symbol in the same file. If you’re building a game for iOS, this error will not show up in XCode, because the tool will not display details of the error. Read on for information on how to resolve this error. Also, see Clang: error: linker command failed with exit code 1:

You may have used the math.h function pow() to define a function prototype, but it wasn’t used properly. If you replace i with b, you’ll get the same error. You should also include a definition for pow() before using it. If it doesn’t, you may want to recompile the entire program after adding math.h.