buildozer: ValueError: Tried to access ndk_ver but it has not been set - this should not happen, something went wrong!

• Python: 2.7
• OS: Ubuntu 16
• Buildozer: tried dev (up-to-date) & stable

Description

I’m trying to deploy my app with buildozer android deploy and buildozer android debug but I keep getting the same error no matter what settings I use. I tried:

p4a.source_dir = ~/p4a
p4a.bootstrap = sdl2

p4a.branch = master

android.api = 27
android.minapi = 21
android.sdk = 23
android.ndk = 17c
android.arch = armeabi-v7a

I also tried commenting out the the android. ... but neither solved my problem. Does anyone know what the error message means? Thank you in advance!

Logs

[INFO]:    Requested API target 27 is available, continuing.
[INFO]:    Found NDK dir in $ANDROIDNDK: /home/pl/.buildozer/android/platform/android-ndk-r17c
[WARNING]: Android NDK version could not be found. This probablywon't cause any problems, but if necessary you canset it with `--ndk-version=...`.
[INFO]:    Getting NDK API version (i.e. minimum supported API) from user argument
Traceback (most recent call last):
  File "/home/pl/anaconda2/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/home/pl/anaconda2/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/pl/p4a/pythonforandroid/toolchain.py", line 1035, in <module>
    main()
  File "/home/pl/p4a/pythonforandroid/toolchain.py", line 1031, in main
    ToolchainCL()
  File "/home/pl/p4a/pythonforandroid/toolchain.py", line 551, in __init__
    getattr(self, args.subparser_name.replace('-', '_'))(args)
  File "/home/pl/p4a/pythonforandroid/toolchain.py", line 142, in wrapper_func
    user_ndk_api=self.ndk_api)
  File "pythonforandroid/build.py", line 376, in prepare_build_environment
    info('Using {} NDK {}'.format(self.ndk.capitalize(), self.ndk_ver))
  File "pythonforandroid/build.py", line 147, in ndk_ver
    raise ValueError('Tried to access ndk_ver but it has not '
ValueError: Tried to access ndk_ver but it has not been set - this should not happen, something went wrong!