Spanish java.io.FileNotFoundException: main.bal

He actualizado mi b4A v.5.02 a la V8.80 y no encuentra los ficheros .bal
Supongo que me falta actualizar mas ficheros. Mi última carpeta es android-19. He tratado de buscar si este problema ya lo habían comunicado, pero no he encontrado la soución.
Les ruego que disculpen mi ignorancia en este tema.

Este es el error:

Registo conectado a: bq Aquaris X5 Plus
--------- beginning of main
** Activity (main) Create, isFirst = true **
LocationManager has been initialized.
No wakelock.
WakeLock already held.
1080
1920
3
1080 x 1920, scale = 3.0 (480 dpi)
** Activity (main) Resume **
WakeLock already held.
** Activity (main) Create, isFirst = true **
LocationManager has been initialized.
No wakelock.
WakeLock already held.
1080
1920
3
1080 x 1920, scale = 3.0 (480 dpi)
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (pantalla_opciones_gps) Create, isFirst = true **
** Activity (pantalla_opciones_gps) Resume **
** Activity (pantalla_opciones_gps) Pause, UserClosed = true **
** Activity (main) Resume **
** Activity (main) Create, isFirst = true **
LocationManager has been initialized.
No wakelock.
WakeLock already held.
main_activity_create (java line: 799)
java.io.FileNotFoundException: main.bal
at android.content.res.AssetManager.openAsset(Native Method)
at android.content.res.AssetManager.open(AssetManager.java:347)
at android.content.res.AssetManager.open(AssetManager.java:321)
at anywheresoftware.b4a.objects.streams.File.OpenInput(File.java:207)
at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:82)
at anywheresoftware.b4a.objects.ActivityWrapper.LoadLayout(ActivityWrapper.java:209)
at deCazaV1.Monteria.main._activity_create(main.java:799)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at deCazaV1.Monteria.main.afterFirstLayout(main.java:104)
at deCazaV1.Monteria.main.access$000(main.java:17)
at deCazaV1.Monteria.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
java.io.FileNotFoundException: main.bal
** Activity (main) Create, isFirst = true **
LocationManager has been initialized.
No wakelock.
WakeLock already held.
1080
1920
3
1080 x 1920, scale = 3.0 (480 dpi)
** Activity (main) Resume **

This is related to an old version of the build tools.

Download this SDK: https://www.b4x.com/android/forum/threads/99780/#content
Configure the IDE to use it (Tools - Configure Paths).