I'd like to participate to LAMW.
Welcome!
I don't know where to find the error description thrown by the java compiler !
Yes, debuging Android not an easy task...
You can try:
1) Adb command line tool...
or
2)Lazarus menu "Tools" --> "[LAMW] ..." --> "Adb Logcat" --> "Dump"
or
3)https://github.com/jmpessoa/lazandroidmodulewizard/blob/master/docs/How_to_open_LAMW_project_with_AndroidStudio.txt
Yes! My java codes are produced using (3)!
Which way my modifications can be reported to the official code repository...
1) Modified ".java" code need be put in LAMW folder: "......\android_wizard\smartdesigner\java"
2) After clone LAMW from github your can do a "pull request" or send here in the forum or email it to me...