aidl cannot be executed?

[Jake Da Bass]

I have tried to install all the 32bit libs but i keep getting this error. why?

jdb@jdb:~/buildozer$ buildozer android clean debug
# Check configuration tokens
# Ensure build layout
# Check configuration tokens
# Read available permissions from api-versions.xml
# Run '/usr/bin/python -m pythonforandroid.toolchain clean_builds --color=always --storage-dir=/home/jdb/buildozer/.buildozer/android/platform/build'
# Cwd /home/jdb/buildozer/.buildozer/android/platform/python-for-android-new-toolchain
# Run '/usr/bin/python -m pythonforandroid.toolchain clean_dists --color=always --storage-dir=/home/jdb/buildozer/.buildozer/android/platform/build'
# Cwd /home/jdb/buildozer/.buildozer/android/platform/python-for-android-new-toolchain
# Preparing build
# Check requirements for android
# Run 'dpkg --version'
# Cwd None
Debian 'dpkg' package management program version 1.18.4 (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-9-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-9-openjdk-amd64/bin/keytool
# Install platform
# Run 'pip install -q --user "appdirs" "colorama>=0.3.3" "sh>=1.10,<1.12.5" "jinja2" "six"'
# Cwd None
# Apache ANT found at /home/jdb/.buildozer/android/platform/apache-ant-1.9.4
# Android SDK found at /home/jdb/.buildozer/android/platform/android-sdk-20
# Android NDK found at /home/jdb/crystax-ndk-10.3.2
# Run '/home/jdb/.buildozer/android/platform/android-sdk-20/tools/android list sdk -u -e'
# Cwd /home/jdb/.buildozer/android/platform
Refresh Sources:
  Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
  Fetched Add-ons List successfully
  Refresh Sources
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Packages available for installation or update: 0
Refresh Sources:
  Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
  Fetched Add-ons List successfully
  Refresh Sources
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Packages available for installation or update: 0

# Run '/home/jdb/.buildozer/android/platform/android-sdk-20/tools/android list sdk -u -e -a'
# Cwd /home/jdb/.buildozer/android/platform
Refresh Sources:
  Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
  Fetched Add-ons List successfully
  Refresh Sources
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Packages available for installation or update: 0
Refresh Sources:
  Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
  Fetched Add-ons List successfully
  Refresh Sources
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Refresh Sources:
  Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Packages available for installation or update: 0

# Check that aidl can be executed
# Search for Aidl
# Run '/home/jdb/.buildozer/android/platform/android-sdk-20/build-tools/0/aidl'
# Cwd None
# Aidl cannot be executed
#
# You might have missed to install 32bits libs
# Check http://buildozer.readthedocs.org/en/latest/installation.html
#
# Check configuration tokens
#