`po` gives `error: :1:1: error: use of unresolved identifier`

Question

I have this problem with po in the console where trying to output a function works in itself, but outputting a variable or constant doesn\'t.

Answer 1

I set Swift Complier to "-O"

SWIFT_OPTIMIZATION_LEVEL = "-O";

and set it back to "-Onone".

SWIFT_OPTIMIZATION_LEVEL = "-Onone";

Then it works.