Build failed: Conflict detected: 'kivy' inducing dependencies ('sdl2',), and 'genericndkbuild' inducing conflicting dependencies ('genericndkbuild',)

[bitinerant]

I tried to follow the instructions exactly on a brand new Ubuntu 20.04 LXC container. I believe I've applied the two fixes mentioned at the top (#2612 and #1444).

Here is what I did (as user ubuntu):

sudo apt update && sudo DEBIAN_FRONTEND=noninteractive apt install -y git zip unzip openjdk-13-jdk python3-pip autoconf libtool pkg-config zlib1g-dev libncurses5-dev libncursesw5-dev libtinfo5 cmake libffi-dev libssl-dev ccache lld
export PATH=$PATH:~/.local/bin
python3 -m pip install --upgrade Cython==0.29.19 virtualenv
python3 -m pip install git+https://github.com/kivy/buildozer.git@c2fcc5d8048cecf52fc4e4d469d9a5e18be81dbc  # "fix aar build #1444" commit 2022-07-13
mkdir ~/libapp && cd $_
buildozer init
printf "import time\nwhile True:\n    time.sleep(1)\n    print('hellow world')\n" >srv.py
perl -p -i -e 's|#?\s*(package.domain)\s*=.*|$1 = org.domain|;' buildozer.spec
perl -p -i -e 's|#?\s*(p4a.bootstrap)\s*=.*|$1 = service_library|;' buildozer.spec
perl -p -i -e 's|#?\s*(android.release_artifact)\s*=.*|$1 = aar|;' buildozer.spec
perl -p -i -e 's|#?\s*(services)\s*=.*|$1 = Srv:srv.py:foreground:sticky|;' buildozer.spec
perl -p -i -e 's|#?\s*(android.archs)\s*=.*|$1 = arm64-v8a, x86|;' buildozer.spec
perl -p -i -e 's|#?\s*(p4a.commit)\s*=.*|$1 = a169f0d124860372055785aaee103de2c4bb2044|;' buildozer.spec  # Fixing service_library bootstrap + .aar build. (#2612) 2022-07-11
perl -p -i -e 's|#?\s*(p4a.branch)\s*=.*|$1 = develop|;' buildozer.spec
buildozer android release

Output of cat buildozer.spec |grep -v -e ^# -e ^$:

[app]
title = My Application
package.name = myapp
package.domain = org.domain
source.dir = .
source.include_exts = py,png,jpg,kv,atlas
version = 0.1
requirements = python3,kivy
orientation = portrait
services = Srv:srv.py:foreground:sticky
osx.python_version = 3
osx.kivy_version = 1.9.1
fullscreen = 0
android.archs = arm64-v8a, x86
android.allow_backup = True
android.release_artifact = aar
p4a.branch = develop
p4a.commit = a169f0d124860372055785aaee103de2c4bb2044
p4a.bootstrap = service_library
ios.kivy_ios_url = https://github.com/kivy/kivy-ios
ios.kivy_ios_branch = master
ios.ios_deploy_url = https://github.com/phonegap/ios-deploy
ios.ios_deploy_branch = 1.10.0
ios.codesign.allowed = false
[buildozer]
log_level = 2
warn_on_root = 1

And last but not least, the log:

ubuntu@fwpoa:~/libapp$ buildozer android release
# Check configuration tokens
# Ensure build layout
# Check configuration tokens
# Read available permissions from api-versions.xml
# Preparing build
# Check requirements for android
# Run 'dpkg --version'
# Cwd None
Debian 'dpkg' package management program version 1.19.7 (amd64).
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
# Search for Git (git)
#  -> found at /usr/bin/git
# Search for Cython (cython)
#  -> found at /home/ubuntu/.local/bin/cython
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-17-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-17-openjdk-amd64/bin/keytool
# Install platform
# Run 'git clone -b develop --single-branch https://github.com/kivy/python-for-android.git python-for-android'
# Cwd /home/ubuntu/libapp/.buildozer/android/platform
Cloning into 'python-for-android'...
# Run 'git reset --hard a169f0d124860372055785aaee103de2c4bb2044'
# Cwd /home/ubuntu/libapp/.buildozer/android/platform/python-for-android
HEAD is now at a169f0d1 Fixing service_library bootstrap + .aar  build. (#2612)
# Run '/usr/bin/python3 -m pip install -q --user \'appdirs\' \'colorama>=0.3.3\' \'jinja2\' \'six\' \'enum34; python_version<"3.4"\' \'sh>=1.10; sys_platform!="nt"\' \'pep517<0.7.0\' \'toml\''
# Cwd None
# Apache ANT found at /home/ubuntu/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/ubuntu/.buildozer/android/platform/android-sdk
# Recommended android's NDK version by p4a is: 23b
# Android NDK found at /home/ubuntu/.buildozer/android/platform/android-ndk-r23b
# Installing/updating SDK platform tools if necessary
# Run '/home/ubuntu/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager --sdk_root=/home/ubuntu/.buildozer/android/platform/android-sdk platform-tools'
# Cwd /home/ubuntu/.buildozer/android/platform/android-sdk
[=======================================] 100% Computing updates...             
# Run '/home/ubuntu/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager --sdk_root=/home/ubuntu/.buildozer/android/platform/android-sdk --update'
# Cwd /home/ubuntu/.buildozer/android/platform/android-sdk
[=======================================] 100% Computing updates...             
# Updating SDK build tools if necessary
# Run '/home/ubuntu/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager --sdk_root=/home/ubuntu/.buildozer/android/platform/android-sdk --list'
# Cwd /home/ubuntu/.buildozer/android/platform/android-sdk
Installed packages:=====================] 100% Computing updates...             
  Path                 | Version | Description                | Location             
  -------              | ------- | -------                    | -------              
  build-tools;33.0.0   | 33.0.0  | Android SDK Build-Tools 33 | build-tools/33.0.0/  
  platform-tools       | 33.0.2  | Android SDK Platform-Tools | platform-tools/      
  platforms;android-27 | 3       | Android SDK Platform 27    | platforms/android-27/
  tools                | 2.0.0   | Android SDK Tools 2        | tools/               

Available Packages:
  Path                                                                                     | Version      | Description                                                         
  -------                                                                                  | -------      | -------                                                             
  add-ons;addon-google_apis-google-15                                                      | 3            | Google APIs                                                         
<----cut---->
  system-images;android-Tiramisu;google-tv;x86                                             | 3            | Google TV Intel x86 Atom System Image                               
  system-images;android-TiramisuPrivacySandbox;google_apis_playstore;arm64-v8a             | 6            | Google Play ARM 64 v8a System Image                                 
  system-images;android-TiramisuPrivacySandbox;google_apis_playstore;x86_64                | 6            | Google Play Intel x86 Atom_64 System Image                          

Available Updates:
  ID      | Installed | Available
  ------- | -------   | -------  

# Check that aidl can be executed
# Search for Aidl
# Run '/home/ubuntu/.buildozer/android/platform/android-sdk/build-tools/33.0.0/aidl'
# Cwd None
# Downloading platform api target if necessary
# Android packages installation done.
# Read available permissions from api-versions.xml
# Run '/usr/bin/python3 -m pythonforandroid.toolchain aab -h --color=always --storage-dir="/home/ubuntu/libapp/.buildozer/android/platform/build-arm64-v8a_x86" --ndk-api=21 --ignore-setup-py --debug'
# Cwd /home/ubuntu/libapp/.buildozer/android/platform/python-for-android
# Check application requirements
# Compile platform
# Run '/usr/bin/python3 -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=service_library --requirements=python3,kivy --arch arm64-v8a --arch x86 --copy-libs --color=always --storage-dir="/home/ubuntu/libapp/.buildozer/android/platform/build-arm64-v8a_x86" --ndk-api=21 --ignore-setup-py --debug'
# Cwd /home/ubuntu/libapp/.buildozer/android/platform/python-for-android
[WARNING]: prerequisites.py is experimental and does not support all prerequisites yet.
[WARNING]: Please report any issues to the python-for-android issue tracker.
[WARNING]: prerequisites.py is experimental and does not support all prerequisites yet.
[WARNING]: Please report any issues to the python-for-android issue tracker.
[INFO]:    Will compile for the following archs: arm64-v8a, x86
[INFO]:    Found Android API target in $ANDROIDAPI: 27
[INFO]:    Available Android APIs are (27)
[INFO]:    Requested API target 27 is available, continuing.
[INFO]:    Found NDK dir in $ANDROIDNDK: /home/ubuntu/.buildozer/android/platform/android-ndk-r23b
[INFO]:    Found NDK version 23b
[INFO]:    Getting NDK API version (i.e. minimum supported API) from user argument
[INFO]:    No existing dists meet the given requirements!
[INFO]:    No dist exists that meets your requirements, so one will be built.
[ERROR]:   Build failed: Conflict detected: 'kivy' inducing dependencies ('sdl2',), and 'genericndkbuild' inducing conflicting dependencies ('genericndkbuild',)
# Command failed: /usr/bin/python3 -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=service_library --requirements=python3,kivy --arch arm64-v8a --arch x86 --copy-libs --color=always --storage-dir="/home/ubuntu/libapp/.buildozer/android/platform/build-arm64-v8a_x86" --ndk-api=21 --ignore-setup-py --debug
# ENVIRONMENT:
#     SHELL = '/bin/bash'
#     PWD = '/home/ubuntu/libapp'
#     LOGNAME = 'ubuntu'
#     XDG_SESSION_TYPE = 'tty'
#     MOTD_SHOWN = 'pam'
#     HOME = '/home/ubuntu'
#     LANG = 'C.UTF-8'
#     LS_COLORS = 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:'
#     PROMPT_COMMAND = 'if [ $? -ne 0 ];then ERROR_FLAG=1;else ERROR_FLAG=;fi; '
#     SSH_CONNECTION = 'fd42:9277:650e:9fb1::1 48266 fd42:9277:650e:9fb1:216:3eff:feeb:8f72 22'
#     LESSCLOSE = '/usr/bin/lesspipe %s %s'
#     XDG_SESSION_CLASS = 'user'
#     TERM = 'xterm-256color'
#     LESSOPEN = '| /usr/bin/lesspipe %s'
#     USER = 'ubuntu'
#     SHLVL = '1'
#     XDG_SESSION_ID = '1705'
#     XDG_RUNTIME_DIR = '/run/user/1000'
#     PS1 = '\\[\\033[0m\\]\\u\\[\\033[1;34m\\]@\\[\\033[0;33m\\]$hname\\[\\033[0m\\]:\\[\\033[1;34m\\]\\w\\[\\033[0;32m\\]${ERROR_FLAG:+\\[\\033[1;31m\\]}\\$\\[\\033[0m\\] '
#     SSH_CLIENT = 'fd42:9277:650e:9fb1::1 48266 22'
#     XDG_DATA_DIRS = '/usr/local/share:/usr/share:/var/lib/snapd/desktop'
#     PATH = '/home/ubuntu/.buildozer/android/platform/apache-ant-1.9.4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/ubuntu/.local/bin'
#     DBUS_SESSION_BUS_ADDRESS = 'unix:path=/run/user/1000/bus'
#     SSH_TTY = '/dev/pts/1'
#     _ = '/home/ubuntu/.local/bin/buildozer'
#     OLDPWD = '/home/ubuntu'
#     PACKAGES_PATH = '/home/ubuntu/.buildozer/android/packages'
#     ANDROIDSDK = '/home/ubuntu/.buildozer/android/platform/android-sdk'
#     ANDROIDNDK = '/home/ubuntu/.buildozer/android/platform/android-ndk-r23b'
#     ANDROIDAPI = '27'
#     ANDROIDMINAPI = '21'
# 
# Buildozer failed to execute the last command
# The error might be hidden in the log above this error
# Please read the full log, and search for it before
# raising an issue with buildozer itself.
# In case of a bug report, please add a full log with log_level = 2
ubuntu@fwpoa:~/libapp$ 

[mzakharo]

Remove kivy from the dependencies list. It should look like this:

requirements = python3

P.S. please note that you can use the latest versions of p4a and buildozer, no need to apply patches to these projects separately.

[bitinerant]

Many many thanks, @mzakharo! In hind sight, this seems obvious. Thanks for the p4a and buildozer tips too.

[mzakharo]

Added instructions to remove kivy from requirements