Need help with Qt - No Valid Kits found when opening project

[nzminer]

Im new to Qt here and my coding experience has only been with visual basic.
Anyway, im wanting to open the project file for editing and i get the message no "valid kits found" under configure project.
I take it im missing a compiler?
I dont know, but im working on a GUI side of a wallet and would like to be able to tweak forms, etc.

TIA