I am also getting
"Unable to build app for testing. Could not generate package manifest."
I had pngs as my images, I removed all images.
Livecode 6.1
I have tried android 2.2 and 2.3.3
THERE IS CONFUSION here. It still says use froyer 2.2, but a forum thread here said use 2.3.3 or livecode 5.5 ...