B4J Question byteconvertor problem

Hello

When i try to compile a b4j project it says :

Are you missing a library reference?
Occurred on line: 5 (iOSPush)
Private bc As ByteConverter

I searhed everywhere for byteconvertor lib or module for b4j but cant find anything. Can yo point me to right direciton ?

EDIT : Found that it is the same lib with b4a and downloaded from there. I was searching byteconvertor instead of byteconverter so couldnt find info.