Android NDK - "$NDK/platforms/android-25" missing?

Versions

• Python: 3.7
• OS: Ubuntu 19.04
• Kivy: 1.11.1
• Cython: 0.29.13

Description

Español:

Según la información proporcionada por el foro de android NDK No hay una nueva versión nativa del NDK(version 15+)/platforms/android-25, por lo cual se debe compilar con el NDK/platforms/android-24. Android Studio reconoce este “error” y trabaja automáticamente con NDK/platforms/android-24 mientras que p4a no… (Existe un bug en android NDK 15c en el cual no trata la carpeta faltante android-25 y se debe usar manualmente android-24)

English:

The information provided from the forum from android NDK say that there’s there were no new native APIs in NDK(version 15+)/platforms/android-25, because of that it should be compiled with NDK/platforms/android-24. Android Studio knows about this “Error” and it works automatically with NDK/platforms/android-24 while p4a still dont. (there is a bug in NDK r15+: it does not treat correctly the missing android-25 folder. and it has to be used android-24 manually)

Sources:

• github.com/android/NDK issues:
  • https://github.com/android/ndk/issues/372
• Why does the android NDK miss out on certain api levels?
  • https://stackoverflow.com/questions/43559120/why-does-the-android-ndk-miss-out-on-certain-api-levels

buildozer.spec

Command:

AppDir$ buildozer -v android debug

Spec file:

requirements = sdl2, python3, sqlite3, kivy==master, kivymd, hostpython3, pillow, libffi
# (int) Target Android API, should be as high as possible.
android.api = 29

# (int) Minimum API your APK will support.
#android.minapi = 26 # Works
#android.minapi = 24 # Works
android.minapi = 25 < --- Error

# (int) Android SDK version to use
android.sdk = 28

# (str) Android NDK version to use
#android.ndk = 20

android.ndk = 19b
#android.ndk = 20

log_level = 2

Logs

--------------------------------------------------------------------------------------------------------------------------------
[INFO]:    Recipe kivy: version "master" requested
[WARNING]: $ANDROIDNDKVER is deprecated and no longer necessary, the value you set is ignored
[INFO]:    Will compile for the following archs: armeabi-v7a
[INFO]:    Found Android API target in $ANDROIDAPI: 29
[INFO]:    Available Android APIs are (29)
[INFO]:    Requested API target 29 is available, continuing.
[INFO]:    Found NDK dir in $ANDROIDNDK: $HOME/.buildozer/android/platform/android-ndk-r19b
[INFO]:    Found NDK version 19b
[INFO]:    Getting NDK API version (i.e. minimum supported API) from user argument
[INFO]:    Found virtualenv at /usr/local/bin/virtualenv
[WARNING]: ndk_platform doesn't exist: $HOME/.buildozer/android/platform/android-ndk-r19b/platforms/android-25/arch-arm <<< This is the error
[INFO]:    Found the following toolchain versions: ['4.9']
[INFO]:    Picking the latest gcc toolchain, here 4.9
[ERROR]:   Build failed: python-for-android cannot continue due to the missing executables above
--------------------------------------------------------------------------------------------------------------------------------

By the information of the sources it might be useful to link the missing NDK api levels to the next lower one found in the NDK/platforms folder

[bevinhex]

If anyone got problem with build tools, due to ‘platforms’ folder, unless you really need the latest version, downgrade your NDK as a workaround, it is working for me.

[podraco]

It’s not too clear to me what the error is, but if you want to use android.ndk = 19b then you also need p4a.branch = develop currently

i’m actually using that…

When the minimal API is set in 25, the project won’t compile because android NDK will not find the folder “$NDK/platforms/android-25” (because it doesn’t exists.)

That means that p4a needs to use API level to 24 when android.minapi = 25