You are told in the errormessage.
You are including different kotlin-stdlib in your project.
kotlin-stdlib-1.6.10
AND (at least) kotlin-stdlib-1.3.21
Remove one of these dependencies.
Probably better to hold the newest one.
try to add
#ExcludedLib: kotlin-stdlib-1.3.21
to your project.
Reference:
I'm happy to release v11.50. This is an important update. Download link: https://www.b4x.com/b4a.html One of the major steps during compilation is the conversion of the Java bytecode into Android (Dalvik) runtime bytecode. It is called "dexing". This was done by the optimized dexer which was...