Adb logcat error - couldn't find "libpython3.5m.so", "libpython3.6m.so", "libpython3.7m.so"

[Miro Sodja]

Hi guys,

Maybe someone can help me. I built the app with buildozer, I used docker container from buildozer GitHub. It works well on an android phone. Only when I run adb logcat | grep python an error occurred couldn't find "libpython3.5m.so". Same for "libpython3.6m.so" and "libpython3.7m.so".

Is it problem because of android.api = 30 and android.ndk = 21d in my buildozer.spec file? Or maybe because of python requirements which is 3.8.1?

Bellow is error printout and buildozer.spec.

Thanks for help,

Miro

=== error printout ====

01-26 23:14:23.025 12362 12362 V pythonutil: Library loading error: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk"],nativeLibraryDirectories=[/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/lib/arm, /data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk!/lib/armeabi-v7a, /system/lib, /product/lib]]] couldn't find "libpython3.5m.so"

01-26 23:14:23.025 12362 12362 V pythonutil: Loading library: python3.6m

01-26 23:14:23.026 12362 12362 V pythonutil: Library loading error: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk"],nativeLibraryDirectories=[/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/lib/arm, /data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk!/lib/armeabi-v7a, /system/lib, /product/lib]]] couldn't find "libpython3.6m.so"

01-26 23:14:23.026 12362 12362 V pythonutil: Loading library: python3.7m

01-26 23:14:23.027 12362 12362 V pythonutil: Library loading error: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk"],nativeLibraryDirectories=[/data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/lib/arm, /data/app/in.potep.myapp.myapp-0w540cTMezxx2GeWhJz-6g==/base.apk!/lib/armeabi-v7a, /system/lib, /product/lib]]] couldn't find "libpython3.7m.so"

=== end error printout ===

=== buildozer.spec ===

[app]

# (str) Title of your application

title = Wood(en) calculator

# (str) Package name

package.name = myapp

# (str) Package domain (needed for android/ios packaging)

package.domain = in.potep.myapp

# (str) Source code where the main.py live

source.dir = ./app

# (list) Source files to include (let empty to include all the files)

source.include_exts = py,png,kv

# (list) List of inclusions using pattern matching

#source.include_patterns = assets/*,images/*.png

# (list) Source files to exclude (let empty to not exclude anything)

#source.exclude_exts = spec

# (list) List of directory to exclude (let empty to not exclude anything)

#source.exclude_dirs = tests, bin

# (list) List of exclusions using pattern matching

#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)

version = 1.15

# (str) Application versioning (method 2)

# version.regex = __version__ = ['"](.*)['"]

# version.filename = %(source.dir)s/main.py

# (list) Application requirements

# comma separated e.g. requirements = sqlite3,kivy

requirements = peewee==3.14.0,sdl2,plyer,kivy==2.0.0,kivymd==0.104.1,kivmob,python3==3.8.1

# (str) Custom source folders for requirements

# Sets custom source for any requirements with recipes

# requirements.source.kivy = ../../kivy

# (list) Garden requirements

#garden_requirements =

# (str) Presplash of the application

presplash.filename = %(source.dir)s/../img/presplash.png

# (str) Icon of the application

icon.filename = %(source.dir)s/../img/icon.png

# (str) Supported orientation (one of landscape, sensorLandscape, portrait or all)

orientation = portrait

# (list) List of service to declare

#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

#

# OSX Specific

#

#

# author = myapp

# change the major version of python used by the app

osx.python_version = 3

# Kivy version to use

# osx.kivy_version = 1.10.1

#

# Android specific

#

# (bool) Indicate if the application should be fullscreen or not

# fullscreen = 0

# (string) Presplash background color (for new android toolchain)

# Supported formats are: #RRGGBB #AARRGGBB or one of the following names:

# red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,

# darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,

# olive, purple, silver, teal.

android.presplash_color = #E8E8E8

# (list) Permissions

android.permissions = INTERNET,ACCESS_NETWORK_STATE,WRITE_EXTERNAL_STORAGE

# (int) Target Android API, should be as high as possible.

android.api = 30

# (int) Minimum API your APK will support.

# android.minapi = 21

# (int) Android SDK version to use

# android.sdk = 28

# (str) Android NDK version to use

android.ndk = 21d

# (int) Android NDK API to use. This is the minimum API your app will support, it should usually match android.minapi.

#android.ndk_api = 21

# (bool) Use --private data storage (True) or --dir public storage (False)

#android.private_storage = True

# (str) Android NDK directory (if empty, it will be automatically downloaded.)

# android.ndk_path = /home/user/.buildozer/android-ndk

# (str) Android SDK directory (if empty, it will be automatically downloaded.)

# android.sdk_path = /home/user/.buildozer/android-sdk

# (str) ANT directory (if empty, it will be automatically downloaded.)

# android.ant_path =/home/user/.buildozer/apache-ant

# (bool) If True, then skip trying to update the Android sdk

# This can be useful to avoid excess Internet downloads or save time

# when an update is due and you just want to test/build your package

# android.skip_update = False

# (bool) If True, then automatically accept SDK license

# agreements. This is intended for automation only. If set to False,

# the default, you will be shown the license when first running

# buildozer.

android.accept_sdk_license = True

# (str) Android entry point, default is ok for Kivy-based app

#android.entrypoint = org.renpy.android.PythonActivity

# (str) Android app theme, default is ok for Kivy-based app

# android.apptheme = "@android:style/Theme.NoTitleBar"

# (list) Pattern to whitelist for the whole project

#android.whitelist =

# (str) Path to a custom whitelist file

#android.whitelist_src =

# (str) Path to a custom blacklist file

#android.blacklist_src =

# (list) List of Java .jar files to add to the libs so that pyjnius can access

# their classes. Don't add jars that you do not need, since extra jars can slow

# down the build process. Allows wildcards matching, for example:

# OUYA-ODK/libs/*.jar

#android.add_jars = foo.jar,bar.jar,path/to/more/*.jar

# (list) List of Java files to add to the android project (can be java or a

# directory containing the files)

#android.add_src =

# (list) Android AAR archives to add (currently works only with sdl2_gradle

# bootstrap)

#android.add_aars =

# (list) Gradle dependencies to add (currently works only with sdl2_gradle

# bootstrap)

android.gradle_dependencies = 'com.google.firebase:firebase-ads:10.2.0'

# na google pravijo, da je to treba vključiti 'com.google.android.gms:play-services-ads:19.7.0'

# (list) add java compile options

# this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option

# see https://developer.android.com/studio/write/java8-support for further information

# android.add_compile_options = "sourceCompatibility = 1.8", "targetCompatibility = 1.8"

# (list) Gradle repositories to add {can be necessary for some android.gradle_dependencies}

# please enclose in double quotes 

# e.g. android.gradle_repositories = "maven { url 'https://kotlin.bintray.com/ktor' }"

#android.add_gradle_repositories =

# (list) packaging options to add 

# see https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.PackagingOptions.html

# can be necessary to solve conflicts in gradle_dependencies

# please enclose in double quotes 

# e.g. android.add_packaging_options = "exclude 'META-INF/common.kotlin_module'", "exclude 'META-INF/*.kotlin_module'"

#android.add_gradle_repositories =

# (list) Java classes to add as activities to the manifest.

#android.add_activities = com.example.ExampleActivity

# (str) OUYA Console category. Should be one of GAME or APP

# If you leave this blank, OUYA support will not be enabled

#android.ouya.category = GAME

# (str) Filename of OUYA Console icon. It must be a 732x412 png image.

#android.ouya.icon.filename = %(source.dir)s/data/ouya_icon.png

# (str) XML file to include as an intent filters in <activity> tag

#android.manifest.intent_filters =

# (str) launchMode to set for the main activity

#android.manifest.launch_mode = standard

# (list) Android additional libraries to copy into libs/armeabi

#android.add_libs_armeabi = libs/android/*.so

#android.add_libs_armeabi_v7a = libs/android-v7/*.so

#android.add_libs_arm64_v8a = libs/android-v8/*.so

#android.add_libs_x86 = libs/android-x86/*.so

#android.add_libs_mips = libs/android-mips/*.so

# (bool) Indicate whether the screen should stay on

# Don't forget to add the WAKE_LOCK permission if you set this to True

#android.wakelock = False

# (list) Android application meta-data to set (key=value format)

android.meta_data = com.google.android.gms.ads.APPLICATION_ID=={ca-app-pub-4671817344990202~2571049170}

# Complete the instructions in the Google Mobile Ads SDK (https://developers.google.com/admob/android/quick-start?hl=en-GB#import_the_mobile_ads_sdk) guide using this app ID: ca-app-pub-4671817344990202~2571049170

# Follow the banner implementation guide (https://developers.google.com/admob/android/banner?hl=en-GB) to integrate the SDK. You'll specify ad type, size and placement when you integrate the code using this ad unit ID: ca-app-pub-4671817344990202/2237938884

# Review the AdMob policies (https://support.google.com/admob/answer/6128543?hl=en-GB) to ensure that your implementation complies.

# test id:    ca-app-pub-3940256099942544~3347511713

# myapp id: ca-app-pub-4671817344990202~2571049170

# (list) Android library project to add (will be added in the

# project.properties automatically.)

#android.library_references =

# (list) Android shared libraries which will be added to AndroidManifest.xml using <uses-library> tag

#android.uses_library =

# (str) Android logcat filters to use

android.logcat_filters = *:S python:D

# (bool) Copy library instead of making a libpymodules.so

#android.copy_libs = 1

# (str) The Android arch to build for, choices: armeabi-v7a, arm64-v8a, x86, x86_64

android.arch = arm64-v8a

# (int) overrides automatic versionCode computation (used in build.gradle)

# this is not the same as app version and should only be edited if you know what you're doing

# android.numeric_version = 1

#

# Python for android (p4a) specific

#

# (str) python-for-android fork to use, defaults to upstream (kivy)

#p4a.fork = kivy

# (str) python-for-android branch to use, defaults to master

#p4a.branch = master

# (str) python-for-android git clone directory (if empty, it will be automatically cloned from github)

# p4a.source_dir = /home/user/.buildozer/python-for-android

# (str) The directory in which python-for-android should look for your own build recipes (if any)

#p4a.local_recipes =

# (str) Filename to the hook for p4a

#p4a.hook =

# (str) Bootstrap to use for android builds

# p4a.bootstrap = sdl2

# (int) port number to specify an explicit --port= p4a argument (eg for bootstrap flask)

#p4a.port =

#

# iOS specific

#

# (str) Path to a custom kivy-ios folder

#ios.kivy_ios_dir = ../kivy-ios

# Alternately, specify the URL and branch of a git checkout:

ios.kivy_ios_url = https://github.com/kivy/kivy-ios

ios.kivy_ios_branch = master

# Another platform dependency: ios-deploy

# Uncomment to use a custom checkout

#ios.ios_deploy_dir = ../ios_deploy

# Or specify URL and branch

ios.ios_deploy_url = https://github.com/phonegap/ios-deploy

ios.ios_deploy_branch = 1.7.0

# (str) Name of the certificate to use for signing the debug version

# Get a list of available identities: buildozer ios list_identities

#ios.codesign.debug = "iPhone Developer: <lastname> <firstname> (<hexstring>)"

# (str) Name of the certificate to use for signing the release version

#ios.codesign.release = %(ios.codesign.debug)s

[buildozer]

# (int) Log level (0 = error only, 1 = info, 2 = debug (with command output))

log_level = 2

# (int) Display warning if buildozer is run as root (0 = False, 1 = True)

warn_on_root = 1

# (str) Path to build artifact storage, absolute or relative to spec file

build_dir = /home/user/buildozer

# (str) Path to build output (i.e. .apk, .ipa) storage

# bin_dir = ./bin

#    -----------------------------------------------------------------------------

#    List as sections

#

#    You can define all the "list" as [section:key].

#    Each line will be considered as a option to the list.

#    Let's take [app] / source.exclude_patterns.

#    Instead of doing:

#

#[app]

#source.exclude_patterns = license,data/audio/*.wav,data/images/original/*

#

#    This can be translated into:

#

#[app:source.exclude_patterns]

#license

#data/audio/*.wav

#data/images/original/*

#

#    -----------------------------------------------------------------------------

#    Profiles

#

#    You can extend section / key with a profile

#    For example, you want to deploy a demo version of your application without

#    HD content. You could first change the title to add "(demo)" in the name

#    and extend the excluded directories to remove the HD content.

#

#[app@demo]

#title = My Application (demo)

#

#[app:source.exclude_patterns@demo]

#images/hd/*

#

#    Then, invoke the command line with the "demo" profile:

#

#buildozer --profile demo android debug

=== end buildozer.spec ===

[Robert]

This is not a problem. It doesn't matter that it can't find say 3.5 it it is using say 3.8

I have tried 30/21d seems to work, don't know about 3.8.1 

If you have an issue the usual approach is to search the logcat for 'Traceback'

[Miro Sodja]

Thanks for the answer. No 'Traceback' in logcat. App works with 30/21d and 3.8.1, it's already on playstore

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[Robert]

Wow, somebody who actually reads the logs even if there isn't an issue - wonderful :)

Congratulations on the app.