anchor.diff:  RUN sdkmanager "cmake;3.6.3155560"
   
   # SDKs
  -#RUN sdkmanager "platforms;android-15"
  -#RUN sdkmanager "platforms;android-16"
  -#RUN sdkmanager "platforms;android-17"
  -#RUN sdkmanager "platforms;android-18"
   RUN sdkmanager "platforms;android-19"
   RUN sdkmanager "platforms;android-21"
   RUN sdkmanager "platforms;android-22"
   RUN sdkmanager "platforms;android-23"
   RUN sdkmanager "platforms;android-24"
   RUN sdkmanager "platforms;android-25"
  +RUN sdkmanager "platforms;android-26"
   
   # google apis
   RUN sdkmanager "add-ons;addon-google_apis-google-19"
  
positive.code: #RUN cd /opt && wget -q https://dl.google.com/android/repository/tools_r25.2.5-linux.zip -O android-sdk-tools.zip
  # sdk-tools-linux-3773319.zip -> tools_r25.3.1
  RUN mkdir -p ${ANDROID_HOME}
  RUN cd /opt \
      && wget -q https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip -O android-sdk-tools.zip \
      && unzip -q android-sdk-tools.zip \
      && mv tools/ ${ANDROID_HOME}/tools/ \
      && rm -f android-sdk-tools.zip
  
  ENV PATH ${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/tools/bin:${ANDROID_HOME}/platform-tools
  
  # ------------------------------------------------------
  # --- Install Android SDKs and other build packages
  
  # Accept all licenses before installing components.
  RUN yes | sdkmanager --licenses
  
  # build tools
  RUN sdkmanager "build-tools;19.1.0"
  
negative.code: RUN sdkmanager "build-tools;25.0.1"
  RUN sdkmanager "build-tools;25.0.2"
  RUN sdkmanager "build-tools;25.0.3"
  RUN sdkmanager "build-tools;26.0.0"
  
  # Constraint Layout
  RUN sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0"
  