Duplicate Symbol Error

Question

I\'m not sure what I did but I added an IBOutlet to display an additional attribute in a TableView cell. When building the application I get the following error message...

Answer 1

I had a similar issue:

ld: duplicate symbol _OBJC_METACLASS_$_MyClass1 in /Users/.../MyClass2.o and /Users/.../MyClass1.o for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

And finally the reason was that inside MyClass2.m I wrote:

#include "MyClass1.m"

Instead of

#include "MyClass1.h"

It's hard to find when you have a lot of #include statements inside your .m file.