I've been getting the error "module "QtQuick.Controls" version 2.0 is not installed" on Qt Creator 5.6.13, so i upgraded to 5.11.2 and i'm still getting it.
Here's the part causing it:
import QtQuick.Controls 2.0
Thank you for your help.
use this command to install it on linux
sudo apt install qml-module-qtquick-controls2