B4J Question Old B4A bluetooth app crashes in B4J

[Beja]

Hi,
Is a b4a app written to communicate with a b4j app different from the one intended to communicate with b4a app?
I am asking because the b4a app that came with the b4j serial example is working good, but when I tried to use a
a b4a working app to communicate with b4j it threw a msg saying "unfortunately (the app) is stopped)

 

[Erel]

There are many different ways to connect and communicate. There are also many examples in the forum.

You should post the B4J code that listens for connections and the B4A code that connects and the error message from the logs.