Failed to install the following Android 30 SDK

I like to use compileSdkVersion 30 and targetSdkVersion 30 in my Android project. Once I push the branch to Travis CI then the build fails with the following error:

Task :buildSrc:build

File /home/travis/.android/repositories.cfg could not be loaded.
Checking the license for package Android SDK Platform 30 in /usr/local/android-sdk/licenses
Warning: License for package Android SDK Platform 30 not accepted.
 
FAILURE: Build failed with an exception.  
* What went wrong:
Could not determine the dependencies of task ':app:testCcc36c3ReleaseUnitTest'.
> Could not resolve all dependencies for configuration ':app:androidApis'.
> Could not create task ':app:minifyCcc36c3ReleaseWithR8'.
> Failed to install the following Android SDK packages as some licences have not been accepted.
platforms;android-30 Android SDK Platform 30

To build this project, accept the SDK license agreements and install the missing components using the Android Studio SDK Manager.
Alternatively, to transfer the license agreements from one workstation to another, see http://d.android.com/r/studio-ui/export-licenses.html  
Using Android SDK: /usr/local/android-sdk

Is there something wrong about my configuration file? How can I resolve the build failure?

I figured out that I need to add the following to the .travis.yml configuration file:

before_install:
- yes | sdkmanager "platforms;android-30"

The former configuration parameter android-30 is not needed any more.

See: Prepare Travis CI configuration for future Android SDK versions. · EventFahrplan/EventFahrplan@04d12c0 · GitHub

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