* What went wrong:
A problem occurred configuring project ':gpgex'.
> Failed to install the following Android SDK packages as some licences have not been accepted.
     build-tools;28.0.2 Android SDK Build-Tools 28.0.2
  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