ImportError: dlopen failed: cannot locate symbol "log" referenced by "_imaging.so".

[NickNameNemo]

Hi I have some issue at deploying to android It looks like issue with PIL Any help will be great!

logcat

I/python (20766): Android kivy bootstrap done. name is main I/python (20766): AND: Ran string I/python (20766): Run user program, change dir and execute entrypoint I/python (20766): [WARNING] [Config ] Older configuration version detected (0 instead of 21) I/python (20766): [WARNING] [Config ] Upgrading configuration in progress. I/python (20766): [INFO ] [Logger ] Record log in /data/data/org.test.scanner/files/app/.kivy/logs/kivy_20-11-19_0.txt I/python (20766): [INFO ] [Kivy ] v2.0.0rc3, git-Unknown, 20201119 I/python (20766): [INFO ] [Kivy ] Installed at "/data/data/org.test.scanner/files/app/_python_bundle/site-packages/kivy/init.pyc" I/python (20766): [INFO ] [Python ] v3.8.1 (default, Nov 19 2020, 16:24:23) I/python (20766): [Clang 8.0.2 (https://android.googlesource.com/toolchain/clang 40173bab62ec7462 I/python (20766): [INFO ] [Python ] Interpreter at "" I/python (20766): [INFO ] [KivyMD ] v0.104.1 I/python (20766): [INFO ] [Factory ] 185 symbols loaded I/python (20766): [INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2 (img_pil, img_ffpyplayer, img_gif ignored) I/python (20766): [INFO ] [Window ] Provider: sdl2 I/python (20766): [INFO ] [GL ] Using the "OpenGL ES 2" graphics system I/python (20766): [INFO ] [GL ] Backend used I/python (20766): [INFO ] [GL ] OpenGL version <b'OpenGL ES 3.0 V@84.0 AU@ (CL@)'> I/python (20766): [INFO ] [GL ] OpenGL vendor <b'Qualcomm'> I/python (20766): [INFO ] [GL ] OpenGL renderer <b'Adreno (TM) 330'> I/python (20766): [INFO ] [GL ] OpenGL parsed version: 3, 0 I/python (20766): [INFO ] [GL ] Texture max size <4096> I/python (20766): [INFO ] [GL ] Texture max units <16> I/python (20766): [INFO ] [Window ] auto add sdl2 input provider I/python (20766): [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked I/python (20766): [INFO ] [Text ] Provider: sdl2 I/python (20766): [INFO ] [GL ] NPOT texture support is available I/python (20766): Traceback (most recent call last): I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/app/main.py", line 3, in I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/scanner/kivy_garden/zbarcam/init.py", line 15, in I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/scanner/kivy_garden/zbarcam/zbarcam.py", line 11, in I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/scanner/kivy_garden/zbarcam/utils.py", line 2, in I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/scanner/PIL/ImageOps.py", line 23, in I/python (20766): File "/home/sergey/PycharmProjects/Kivy_tutorial/Scanner/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/scanner/PIL/Image.py", line 69, in I/python (20766): ImportError: dlopen failed: cannot locate symbol "log" referenced by "_imaging.so"... I/python (20766): Python for android ended. Log.txt

main.py

from kivy.uix.boxlayout import BoxLayout
from kivy_garden.zbarcam import ZBarCam
from pyzbar.pyzbar import ZBarSymbol

class Main(BoxLayout):
    pass

class BarcodeCam(ZBarCam):
    pass

class ScannerApp(MDApp):

    def build(self):
        self.theme_cls.theme_style = "Dark"
        self.theme_cls.primary_palette = 'Gray'
        return Main()

if __name__ == '__main__':
    ScannerApp().run()```

scanner.kv

```#:kivy 1.0

<Main>:
    orientation: 'vertical'
    spacing: 5
    MDToolbar:
        title: 'Barcode scanner'
        left_action_items: [["menu", lambda x: x]]
    BarcodeCam:
        id: barcode_cam
   `MDLabel:
        text: '1234'
        halign: "center"
        size_hint: 1, .2
    MDLabel:
        text: 'OK'
        font_size: 70
        halign: "center"
        size_hint: 1, .3
        theme_text_color: 'Custom'
        text_color: 0,1,0,1
    MDBottomAppBar:
        MDToolbar:
            icon: "barcode-scan"
            type: "bottom"
            left_action_items: [["file-tree", lambda x: x]]```

buildozer.spec

```[app]

# (str) Title of your application
title = Scanner

# (str) Package name
package.name = scanner

# (str) Package domain (needed for android/ios packaging)
package.domain = org.test

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

# (list) Source files to include (let empty to include all the files)
source.include_exts = py,png,jpg,kv,atlas

# (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, venv

# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)
version = 0.1

# (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 = python3,kivy==2.0.0rc3, kivymd==0.104.1, pygments, sdl2_ttf==2.0.15, pyzbar==0.1.8, xcamera==2019.928, pillow,libiconv, libzbar, kivy-garden, zbarcam

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (str) Presplash of the application
#presplash.filename = %(source.dir)s/data/presplash.png

# (str) Icon of the application
#icon.filename = %(source.dir)s/data/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 = © Copyright Info

# change the major version of python used by the app
osx.python_version = 3

# Kivy version to use
osx.kivy_version = 1.9.1

#
# Android specific
#

# (bool) Indicate if the application should be fullscreen or not
fullscreen = 0

# (string) Presplash background color (for 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 = #FFFFFF

# (string) Presplash animation using Lottie format.
# see https://lottiefiles.com/ for examples and https://airbnb.design/lottie/
# for general documentation.
# Lottie files can be created using various tools, like Adobe After Effect or Synfig.
#android.presplash_lottie = "path/to/lottie/file.json"

# (list) Permissions
android.permissions = INTERNET, CAMERA

# (list) features (adds uses-feature -tags to manifest)
#android.features = android.hardware.usb.host

# (int) Target Android API, should be as high as possible.
#android.api = 27

# (int) Minimum API your APK will support.
#android.minapi = 21

# (int) Android SDK version to use
#android.sdk = 20

# (str) Android NDK version to use
#android.ndk = 19b

# (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 =

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

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

# (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 = False

# (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
#android.add_aars =

# (list) Gradle dependencies to add
#android.gradle_dependencies =

# (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_packaging_options =

# (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 =

# (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 = armeabi-v7a

# (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

# (bool) enables Android auto backup feature (Android API >=23)
android.allow_backup = True

# (str) XML file for custom backup rules (see official auto backup documentation)
# android.backup_rules =

#
# 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 =

# (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 =

# Control passing the --use-setup-py vs --ignore-setup-py to p4a
# "in the future" --use-setup-py is going to be the default behaviour in p4a, right now it is not
# Setting this to false will pass --ignore-setup-py, true will pass --use-setup-py
# NOTE: this is general setuptools integration, having pyproject.toml is enough, no need to generate
# setup.py if you're using Poetry, but you need to add "toml" to source.include_exts.
#p4a.setup_py = false

#
# 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 = 1.10.0

# (bool) Whether or not to sign the code
ios.codesign.allowed = false

# (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 = ./.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` ```

[NickNameNemo]

I found solution on below link

https://github.com/kivy/buildozer/issues/1020#issuecomment-578547154

If it helps to someone else the specific file to solve this issue is: .buildozer/android/platform/python-for-android/pythonforandroid/recipes/Pillow/init.py

and you must changle the line env['CFLAGS'] += cflags

to this new line with the math flag: env['CFLAGS'] += cflags + " -lm"

clean the python-for-android and rebuild.

buildozer android clean buildozer android debug

[AndreMiras]

Maybe that's something you want to pull request for directly in python-for-android? https://github.com/kivy/python-for-android/blob/70b4b73/pythonforandroid/recipes/Pillow/__init__.py

[NickNameNemo]

Пн, 23 нояб. 2020 г. в 21:12, Andre Miras notifications@github.com:

Maybe that's something you want to pull request for directly in python-for-android?

https://github.com/kivy/python-for-android/blob/70b4b73/pythonforandroid/recipes/Pillow/__init__.py

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/kivy-garden/zbarcam/issues/51#issuecomment-732222751, or unsubscribe https://github.com/notifications/unsubscribe-auth/AR2DDKQRIBYHXDNA2PHB4KTSRJ3URANCNFSM4T3SHGBA .

Hi. I’m beginner in programming. The exception happened in zbarcam module, so why I put issue in zbarcam repository first. Thank you.