I always get this error when I want to build the Release App. I use the hosted builder.
EDIT: problem solved.
B4X:
B4i version: 2.51
Parsing code. (0.09s)
Compiling code. (0.22s)
Compiling layouts code. (0.01s)
Building Xcode project (0.10s)
Sending data to remote compiler. Error
Communication error: java.lang.RuntimeException: java.io.IOException: java.lang.IllegalArgumentException: MALFORMED
EDIT: problem solved.