I got this error, I have upgraded my laptop, and when installing all and such, and try to compile my proyects that was on win32 before I got this error.
Generando el fichero R. Error
invalid resource directory name: C:\Proyectos\EnviaPy-b4a-A8\Objects\bin\extra\res6\res/values-b+sr+Latn
Hmm, well, I followed the tutorial, but on some point I have used the android sdk manager to download the first API level etc, and then when I try to install the upadates from B4A SDK Manager gives that error.