I did not say layout or project name called: b4a.example. I said: package name called:b4a.example . Although upgrading the class from 1.20 to 1.65 is a good idea, I do not think upgrading will fix your problem. I had a similar situation like yours and to solve it, I followed the procedure I gave you in post#2.
Please post how you eventually solve your problem, no matter how you do it.