Android 运行时获取错误"；buildozer-v安卓调试“；在ubuntu 18.04上

我想用Kivy Python构建一个android应用程序。 但是当我运行命令“buildozer-v android debug”时，我得到了一个错误

# 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 1.19.0.5 (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 /home/ujjwal/env/bin/cython
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/keytool
# Install platform
# Run 'git config --get remote.origin.url'
# Cwd /home/ujjwal/Python/.buildozer/android/platform/python-for-android
https://github.com/kivy/python-for-android.git
# Run 'git branch -vv'
# Cwd /home/ujjwal/Python/.buildozer/android/platform/python-for-android
* master b1f6064d [origin/master] Release 2019.10.06 (#1998)
# Run '/home/ujjwal/env/bin/python3 -m pip install -q  \'appdirs\' \'colorama>=0.3.3\' \'jinja2\' \'six\' \'enum34; python_version<"3.4"\' \'sh>=1.10; sys_platform!="nt"\' \'pep517<0.7.0"\' \'pytoml\' \'virtualenv\''
# Cwd None
# Apache ANT found at /home/ujjwal/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/ujjwal/.buildozer/android/platform/android-sdk
# Recommended android's NDK version by p4a is: 19b
# Android NDK found at /home/ujjwal/.buildozer/android/platform/android-ndk-r19b
# Installing/updating SDK platform tools if necessary
# Run '/home/ujjwal/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager tools platform-tools'
# Cwd /home/ujjwal/.buildozer/android/platform/android-sdk
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 5 more
# Command failed: /home/ujjwal/.buildozer/android/platform/android-sdk/tools/bin/sdkmanager tools platform-tools
# ENVIRONMENT:
#     CLUTTER_IM_MODULE = 'xim'
#     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:*.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:'
#     LESSCLOSE = '/usr/bin/lesspipe %s %s'
#     XDG_MENU_PREFIX = 'gnome-'
#     LANG = 'en_IN'
#     DISPLAY = ':0'
#     OLDPWD = '/home/ujjwal'
#     GNOME_SHELL_SESSION_MODE = 'ubuntu'
#     COLORTERM = 'truecolor'
#     USERNAME = 'ujjwal'
#     XDG_VTNR = '2'
#     SSH_AUTH_SOCK = '/run/user/1000/keyring/ssh'
#     VIRTUAL_ENV = '/home/ujjwal/env'
#     XDG_SESSION_ID = '2'
#     USER = 'ujjwal'
#     DESKTOP_SESSION = 'ubuntu'
#     QT4_IM_MODULE = 'xim'
#     TEXTDOMAINDIR = '/usr/share/locale/'
#     GNOME_TERMINAL_SCREEN = '/org/gnome/Terminal/screen/8a8173bd_c6ee_4588_a283_2054d568699f'
#     PWD = '/home/ujjwal/Python'
#     HOME = '/home/ujjwal'
#     TEXTDOMAIN = 'im-config'
#     SSH_AGENT_PID = '1492'
#     QT_ACCESSIBILITY = '1'
#     XDG_SESSION_TYPE = 'x11'
#     XDG_DATA_DIRS = '/usr/share/ubuntu:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop'
#     XDG_SESSION_DESKTOP = 'ubuntu'
#     GJS_DEBUG_OUTPUT = 'stderr'
#     GTK_MODULES = 'gail:atk-bridge'
#     WINDOWPATH = '2'
#     TERM = 'xterm-256color'
#     SHELL = '/bin/bash'
#     VTE_VERSION = '5202'
#     QT_IM_MODULE = 'xim'
#     XMODIFIERS = '@im=ibus'
#     IM_CONFIG_PHASE = '2'
#     XDG_CURRENT_DESKTOP = 'ubuntu:GNOME'
#     GPG_AGENT_INFO = '/run/user/1000/gnupg/S.gpg-agent:0:1'
#     GNOME_TERMINAL_SERVICE = ':1.76'
#     XDG_SEAT = 'seat0'
#     SHLVL = '1'
#     LANGUAGE = 'en_IN:en'
#     GDMSESSION = 'ubuntu'
#     GNOME_DESKTOP_SESSION_ID = 'this-is-deprecated'
#     LOGNAME = 'ujjwal'
#     DBUS_SESSION_BUS_ADDRESS = 'unix:path=/run/user/1000/bus'
#     XDG_RUNTIME_DIR = '/run/user/1000'
#     XAUTHORITY = '/run/user/1000/gdm/Xauthority'
#     XDG_CONFIG_DIRS = '/etc/xdg/xdg-ubuntu:/etc/xdg'
#     PATH = '/home/ujjwal/.buildozer/android/platform/apache-ant-1.9.4/bin:/home/ujjwal/env/bin:/home/ujjwal/.local/bin:/home/ujjwal/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin'
#     PS1 = ('(env) \\[\\e]0;\\u@\\h: '
 '\\w\\a\\]${debian_chroot:+($debian_chroot)}\\[\\033[01;32m\\]\\u@\\h\\[\\033[00m\\]:\\[\\033[01;34m\\]\\w\\[\\033[00m\\]\\$ ')
#     GJS_DEBUG_TOPICS = 'JS ERROR;JS LOG'
#     SESSION_MANAGER = 'local/ujjwal:@/tmp/.ICE-unix/1397,unix/ujjwal:/tmp/.ICE-unix/1397'
#     LESSOPEN = '| /usr/bin/lesspipe %s'
#     GTK_IM_MODULE = 'ibus'
#     _ = '/home/ujjwal/env/bin/buildozer'
# 
# 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

然后，创建一个新文件夹并在终端中导航到它。到达后，需要运行以下命令：

$ buildozer init

 **$ buildozer -v android debug**

这将创建一个buildozer.spec文件，用于配置构建。对于本例，可以按如下方式编辑等级库文件的前几行：

[app]

# (str) Title of your application
title = KvCalc

# (str) Package name
package.name = kvcalc

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

请随意浏览文件的其余部分，以查看您还可以更改哪些内容

现在，您几乎可以构建应用程序了，但是首先，您需要安装buildozer的依赖项。一旦安装了这些，将计算器应用程序复制到新文件夹中，并将其重命名为main.py。这是buildozer所需要的。如果文件命名不正确，则生成将失败

现在可以运行以下命令：

$ buildozer init

 **$ buildozer -v android debug**

我在这一步中遇到了问题

---

如何修复此错误并构建android应用程序？

发布完整错误，即buildozer/home/ujjjwal/输出的所有内容。buildozer/android/platform/android sdk/tools/bin/sdkmanager tools平台工具我发现此文件在bin中不可用。如何下载此文件？