Travis CI failed with constraint layout

[xEdenx]

You have not accepted the license agreements of the following SDK components: [ConstraintLayout for Android 1.0.0-alpha7, Solver for ConstraintLayout 1.0.0-alpha7]. Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager. Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html

[nageshs]

Is this an issue being reported?

[tseglevskiy]

https://code.google.com/p/android/issues/detail?id=212128

[tseglevskiy]

I have the same issue yet:

A problem occurred configuring project ':app'.
 You have not accepted the license agreements of the following SDK components:
  [Solver for ConstraintLayout 1.0.0-alpha8, ConstraintLayout for Android 1.0.0-alpha8].
  Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager.
  Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html

[sweisgerber-dev]

Here's a solution https://stackoverflow.com/a/42736695/726776

[miankhalid]

There's already a closed issue for this on Travis's Issue page and one of the mentioned solutions on it is definitely working currently.

Exact link to solution: https://github.com/travis-ci/travis-ci/issues/6617#issuecomment-369580270