Platform tools missing for android studio downloaded sdk

If you download android sdk using android studio qt-creator will say that platform tools are missing and also if you set up, update, or modify in any way an old working android sdk with android studio, qt creator complains that platform tools are missing.

Sorry I dont what additional information I can provide but I tested this on another computer and I am convinced that this affects many users. 

EDIT: The android studio version is the newest one:

Android Studio 3.1.1
Build #AI-173.4697961, built on April 3, 2018
JRE: 1.8.0_152-release-1024-b01 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Linux 4.15.0-15-generic

, I was using openjdk 11 and I have Qt 5.10.1

My sdk is updated and i have a lot of platforms:

$ls platforms

platforms android-19 android-20 android-21 android-22 android-23 android-24 android-25 android-26 android-27 android-P

My tree output had more than 10 mb so iI attached 2 files, I had a smaller sdk before that had the same issue, so i think this is not the problem.

SOLUTION: I figured out that if i install openjdk 8 and use it, and then restart qt-creator it would not warm me anymore about missing platform tools. So the problem is probably with openjdk versions newer than 8.