Building with Qt Creator: "No valid kits found"

Steps to reproduce my problem:
Follow the readme:

  • Download the Qt installer
  • Install additional packages: sudo apt-get install speech-dispatcher libudev-dev libsdl2-dev
  • Clone from git: git clone --recursive
  • Launch Qt Creator and open the project

The readme states that you should “Select the appropriate kit for your needs”, but no kits are found:

Did I do anything wrong?

I assume you also ran the Qt Installer. For some reason you may need to set up you Qt manually in Qt Creator using Manage Kits. That is just Qt stuff which has nothing to do with QGC specifically. You should be able to use Qt docs to figure out how to use that.

you should install qt5.9.1 module

Doesn’t really answer his question.