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

If more than one class shares a same name this kind of error will come

Answer 2

Other than the .m issue, if you created models in the wrong folder, deleted them and then created/replaced the models in the correct folder. You may need to remove the duplicates in Targets Build Phases under the Compiled Sources grouping.

Answer 3

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.

Answer 4

I dont really understand why this would be a problem so maybe someone could clarify but for me the problem was that I had imported another class which had declared an instance variable with the same name as one in the current class.

When I changed the name of the ivar in the imported class's implementation the error disappeared.

Hope this helps!

Answer 5

This might b due to the reason that you have included two source files of Inspection class