Android 29 - android-update-sdk: command not found

[PeninahW]

I am trying to integrate Travis CI into and Android project but all travis build fail.
The Android SDK that I am using is 29 with build-tools:29.0.3
The error is:
-> Installing Android dependencies
-> android-update-sdk --components=tools
-> android-update-sdk: command not found
-> The command “android-update-sdk --components=tools” failed and exited with 127 during .
-> Your build has been stopped.

The .travis.yml file is as below:

Any advice?

[native-api]

Please link to an affected build.

[PeninahW]

The link to the Travis build?