[user@revenge kivy1]$ p4a apk --private main --name "Main4Kivy" --version 0.1 --bootstrap=sdl2 --requirements=kivy --arch=armeabi-v7a --package=org.example.main4 
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI: 28
[INFO]:    Available Android APIs are (28)
[INFO]:    Requested API target 28 is available, continuing.
[INFO]:    Found NDK dir in $ANDROIDNDK: /home/user/Documents/sdk_and_ndk/android-ndk-r17c-linux-x86_64/android-ndk-r17c
[INFO]:    Got NDK version from $ANDROIDNDKVER: r17c
[INFO]:    Found Android API target in $NDKAPI
[INFO]:    Using Google NDK r17c
[INFO]:    Found virtualenv at /usr/bin/virtualenv
[INFO]:    ccache is missing, the build will not be optimized in the future.
[INFO]:    Found the following toolchain versions: ['4.9']
[INFO]:    Picking the latest gcc toolchain, here 4.9
[INFO]:    Of the existing distributions, the following meet the given requirements:
[INFO]:    	unnamed_dist_1: min API 27, includes recipes (hostpython2, sdl2_image, sdl2_mixer, sdl2_ttf, python2, sdl2, six, pyjnius, kivy), built for archs (armeabi-v7a)
[INFO]:    unnamed_dist_1 has compatible recipes, using this one
[INFO]:    Of the existing distributions, the following meet the given requirements:
[INFO]:    	unnamed_dist_1: min API 27, includes recipes (hostpython2, sdl2_image, sdl2_mixer, sdl2_ttf, python2, sdl2, six, pyjnius, kivy), built for archs (armeabi-v7a)
[INFO]:    unnamed_dist_1 has compatible recipes, using this one
[INFO]:    -> directory context /home/user/.local/share/python-for-android/dists/unnamed_dist_1
BUILD FAILURE: No main.py(o) found in your app directory. This
file must exist to act as the entry point for you app. If your app is
started by a file with a different name, rename it to main.py or add a
main.py that loads it.