我运行命令 --buildozer android debug ，因为我想在我的手机上创建一个 apk 文件，但是在我到达这一点之后
[INFO]: Building libffi for armeabi-v7a
**[ERROR]: Build failed: Couldn't find executable for CC.** This indicates a problem locating the /home/pi/.buildozer/android/platform/android-ndk-r19b/toolchains/llvm/prebuilt/linux-armv7l/bin/clang executable in the Android NDK, not that you don't have a normal compiler installed. Exiting.
Searching path are: '/home/pi/.buildozer/android/platform/android-ndk-r19b/toolchains/llvm/prebuilt/linux-armv7l/bin:/home/pi/.buildozer/android/platform/android-ndk-r19b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/:/home/pi/.buildozer/android/platform/android-ndk-r19b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/:/home/pi/.buildozer/android/platform/android-ndk-r19b:/home/pi/.buildozer/android/platform/android-sdk/tools:/home/pi/.buildozer/android/platform/apache-ant-1.9.4/bin:/usr/bin/jdk-10/bin:/path/to/inflated/jdk-10/bin:/path/to/inflated/jdk-10/bin:/path/to/inflated/jdk-10/bin:/path/to/inflated/jdk-10/bin:/home/pi/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games'
# Command failed: /usr/bin/python3 -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=sdl2 --requirements=python3,kivy --arch armeabi-v7a --copy-libs --color=always --storage-dir="/home/pi/Downloads/kivy/MySecApp/.buildozer/android/platform/build-armeabi-v7a" --ndk-api=21
# ENVIRONMENT:
# SHELL = '/bin/bash'
# COLORTERM = 'truecolor'
# XDG_CONFIG_DIRS = '/etc/xdg'
# XDG_SESSION_PATH = '/org/freedesktop/DisplayManager/Session0' …