Check configuration tokens
# Ensure build layout
# Create directory /home/ras/Desktop/KivyMD/demos/kitchen_sink/.buildozer
# Create directory /home/ras/Desktop/KivyMD/demos/kitchen_sink/bin
# Create directory /home/ras/Desktop/KivyMD/demos/kitchen_sink/.buildozer/applibs
# Create directory /home/ras/Desktop/KivyMD/demos/kitchen_sink/.buildozer/android/platform
# Create directory /home/ras/Desktop/KivyMD/demos/kitchen_sink/.buildozer/android/app
# 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 1.19.0.5 (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 /usr/local/bin/cython
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-8-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/keytool
# Install platform
# Run 'git clone -b master --single-branch https://github.com/kivy/python-for-android.git python-for-android'
# Cwd /home/ras/Desktop/KivyMD/demos/kitchen_sink/.buildozer/android/platform
Cloning into 'python-for-android'...
# 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\' \'pytoml\' \'virtualenv\''
# Cwd None
# Apache ANT found at /home/ras/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/ras/.buildozer/android/platform/android-sdk
# Recommended android's NDK version by p4a is: 17c
# Android NDK found at /home/ras/.buildozer/android/platform/android-ndk-r17c
# Installing/updating SDK platform tools if necessary
# Run 'yes 2>/dev/null | /home/ras/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager --licenses'
# Cwd /home/ras/.buildozer/android/platform/android-sdk
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 5 more