error when trying to build an android app on qt 5.11

[Cremers]

I get this error trying to build a project on QT 5.11.1

The installed SDK tools version (26.1.1) does not include Gradle scripts. The minimum Qt version required for Gradle build to work is 5.9.0/5.6.3
Error while building/deploying project planetdance (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.2.0 (android_armv7)))
When executing step "Build Android APK"

I used Android Studio to install the SDK, though it installed api level 28, not 26.
Also, looking at the Kits page in qtcreator, it says 5.11 is installed, though the error reports 5.2

Edit: well it's more or less solved, i succesfully could build a new empty project. It went ahead and downloaded some gradle stuff that was not installed before.