Inconsistent dependency graph behaviour

[hottwaj]

Seems to fail when there is no actual dependency issue? See a handful of test cases below...

e.g. here I start with bootstrap sdl2 and requirements sdl2,python2,kivy,audiostream

python -m pythonforandroid.toolchain create --bootstrap=sdl2 --requirements=sdl2,python2,kivy,audiostream --dist_name=sdl2_kivy

...snip...
[INFO]:    Bootstrap requires recipes ['sdl2']
[INFO]:    Loaded recipe sdl2 (depends on ['python2', 'sdl2_image', 'sdl2_mixer', 'sdl2_ttf'], conflicts ['sdl', 'pygame', 'pygame_bootstrap_components'])
[INFO]:    Loaded recipe kivy (depends on [('sdl2', 'pygame'), 'pyjnius'])
[INFO]:    Loaded recipe audiostream (depends on ['python2', ('sdl', 'sdl2'), 'pyjnius'])
[INFO]:    Loaded recipe python2 (depends on ['hostpython2'], conflicts ['python3'])
[INFO]:    Loaded recipe sdl2_image (depends on [])
[INFO]:    Loaded recipe sdl2_mixer (depends on [])
[INFO]:    Loaded recipe sdl2_ttf (depends on [])
[INFO]:    Loaded recipe pyjnius (depends on ['python2', ('sdl2', 'sdl'), 'six'])
[INFO]:    Loaded recipe hostpython2 (depends on [], conflicts ['hostpython3'])
[INFO]:    Loaded recipe six (depends on ['python2'])
[WARNING]: Didn't find any valid dependency graphs, exiting.

However that set of packages should be valid?

If I remove "audiostream" graph checking succeeds and compilation begins.

If instead I remove "kivy" graph checking succeeds and compilation begins

If instead I change the order of requirements to this (i.e. swap order of sdl2 and python2):
python2,sdl2,kivy,audiostream

then I get:

[INFO]:    Bootstrap requires recipes ['sdl2']
[INFO]:    Loaded recipe python2 (depends on ['hostpython2'], conflicts ['python3'])
[INFO]:    Loaded recipe kivy (depends on [('sdl2', 'pygame'), 'pyjnius'])
[INFO]:    Loaded recipe audiostream (depends on ['python2', ('sdl', 'sdl2'), 'pyjnius'])
[INFO]:    Loaded recipe sdl2 (depends on ['python2', 'sdl2_image', 'sdl2_mixer', 'sdl2_ttf'], conflicts ['sdl', 'pygame', 'pygame_bootstrap_components'])
[WARNING]: sdl2 conflicts with pygame, but both have been included or pulled into the requirements.
[WARNING]: Due to this conflict the build cannot continue, exiting.

However I have not selected pygame?

Or maybe there's something wrong with audiostream's dependencies (as noted above these are ['python2', ('sdl', 'sdl2'), 'pyjnius'])?

Thanks!

[cocoa1231]

This is still happening with me. I just have a basic app with a box layout and a button and it won't compile. getting the error:
[WARNING]: Didn't find any valid dependency graphs, exiting.

Full output:

➜  /tmp buildozer android debug
# Check configuration tokens
# Ensure build layout
# Check configuration tokens
# Preparing build
# Check requirements for android
# Run 'dpkg --version'
# Cwd None
/bin/sh: dpkg: command not found
# Search for Git (git)
#  -> found at /usr/bin/git
# Search for Cython (cython)
#  -> found at /usr/bin/cython3
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-8-openjdk/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-8-openjdk/jre/bin/keytool
# Install platform
# Run 'pip install -q --user "appdirs" "colorama>=0.3.3" "sh>=1.10,<1.12.5" "jinja2" "six"'
# Cwd None
# Apache ANT found at /home/cocoa/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/cocoa/.buildozer/android/platform/android-sdk-20
# Android NDK found at /home/cocoa/.buildozer/android/platform/android-ndk-r9c
# Check application requirements
# Check garden requirements
# Compile platform
# Run '/usr/bin/python -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=sdl2 --requirements=kivy,python3 --arch armeabi-v7a --copy-libs --color=always --storage-dir=/tmp/.buildozer/android/platform/build'
# Cwd /tmp/.buildozer/android/platform/python-for-android-master
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI
[INFO]:    Available Android APIs are (15, 19)
[INFO]:    Requested API target 19 is available, continuing.
[INFO]:    Found NDK dir in $ANDROIDNDK
[INFO]:    Got NDK version from $ANDROIDNDKVER
[INFO]:    Using Google NDK r9c
[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: ['4.6', '4.8', 'clang3.3']
[INFO]:    Picking the latest gcc toolchain, here 4.8
[INFO]:    No existing dists meet the given requirements!
[INFO]:    No dist exists that meets your requirements, so one will be built.
[ERROR]:   Didn't find any valid dependency graphs.
[ERROR]:   This means that some of your requirements pull in conflicting dependencies.
[ERROR]:   Exiting.
# Command failed: /usr/bin/python -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=sdl2 --requirements=kivy,python3 --arch armeabi-v7a --copy-libs --color=always --storage-dir=/tmp/.buildozer/android/platform/build
# 
# 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
➜  /tmp /usr/bin/python -m pythonforandroid.toolchain create --dist_name=kes --bootstrap=sdl2 --requirements=python3 --arch x86 --copy-libs --color=always --storage-dir=/home/cocoa/KES/.buildozer/android/platform/build
[INFO]:    This python-for-android revamp is an experimental alpha release!
[INFO]:    It should work (mostly), but you may experience missing features or bugs.
/usr/lib/python3.6/re.py:212: FutureWarning: split() requires a non-empty pattern match.
  return _compile(pattern, flags).split(string, maxsplit)
[INFO]:    Will compile for the following archs: x86
[INFO]:    Found possible SDK dirs in buildozer dir: android-sdk-20
[INFO]:    Will attempt to use SDK at /home/cocoa/.buildozer/android/platform/android-sdk-20
[WARNING]: This SDK lookup is intended for debug only, if you use python-for-android much you should probably maintain your own SDK download.
[INFO]:    Android API target was not set manually, using the default of 15
[INFO]:    Available Android APIs are (15, 19)
[INFO]:    Requested API target 15 is available, continuing.
[INFO]:    Found possible NDK dirs in buildozer dir: android-ndk-r9c, android-ndk-r9c-linux-x86_64.tar.bz2
[INFO]:    Will attempt to use NDK at /home/cocoa/.buildozer/android/platform/android-ndk-r9c
[WARNING]: This NDK lookup is intended for debug only, if you use python-for-android much you should probably maintain your own NDK download.
[INFO]:    Got NDK version from $ANDROIDNDKVER
[INFO]:    Got Android NDK version from the NDK dir: it is r9c
[INFO]:    Using Google NDK r9c
[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: ['4.6', '4.8', 'clang3.3']
[INFO]:    Picking the latest gcc toolchain, here 4.8
[INFO]:    No existing dists meet the given requirements!
[INFO]:    No dist exists that meets your requirements, so one will be built.
[INFO]:    Bootstrap requires recipes ['sdl2', ('python2', 'python3crystax')]
[INFO]:    Loaded recipe sdl2 (depends on [('python2', 'python3crystax'), 'sdl2_image', 'sdl2_mixer', 'sdl2_ttf'], conflicts ['sdl', 'pygame', 'pygame_bootstrap_components'])
[INFO]:    Loaded recipe python3 (depends on ['hostpython3'], conflicts ['python2'])
[INFO]:    Loaded recipe sdl2_image (depends on [])
[INFO]:    Loaded recipe sdl2_mixer (depends on [])
[INFO]:    Loaded recipe sdl2_ttf (depends on [])
[INFO]:    Loaded recipe hostpython3 (depends on [], conflicts ['hostpython2'])
[WARNING]: Didn't find any valid dependency graphs, exiting.
➜  /tmp 

[inclement]

@cocoa1231 Your problem is unrelated - you have python3 in your requirements, but the only supported possibilities are python3crystax (which requires the CrystaX NDK, see the docs) or python2.

I recognise that this is quite unclear, I'll look at removing the python3 recipe.

[cocoa1231]

@inclement Thanks for replying. i tried removing python3 as a dependency, adding python2 as a dependency, still I'm getting the same error

[inclement]

@cocoa1231 Please post the full logs and explanation of the problem at https://groups.google.com/forum/#!forum/kivy-users