Where are Qt Creator Build & Run settings stored?

Question

I am using Qt Creator 4.6.2 on Ubuntu, and one of my projects has several build configurations that each have different custom process steps. Somehow my Qt Creator glitched out and my custom configurations were lost. I would like to back up these config files in case this happens again, but cannot figure out where Qt stores them. I found the directory where the kits and toolchains are stored, but no build settings for individual projects. Thanks in advance!

Answer 1

As far as I know that information is stored in the file xxx.pro.user

project settings