In Interface Builder the IBOulet "from_A_to_B" was added to Controller_A
and a connection made from Controller_A to Controller_B
Controller_A.m hold the code
v = [from_A_to_B test_int];
Controller_A.h hold the declaration (in interface Controller_A : NSObject)
IBOutlet id from_A_to_B;
Controller_B.m hold the code
Controller_B.h hold the declaration
The compiler report this error
Error : unknown message selector
Controller_A.m line 13 v = [from_A_to_B test_int];
Do I have made an illegal IB connection ?
What code is missing/wrong ?