"Unsupported Build Type" when building a project with qmake

Question

I try to compile QGroundControl source code. QT is installed. and edit the path on Win8

http://www.qgroundcontrol.org/dev/build_source#build_from_source

cd C:\mav\qgroundcontrol 
qmake -tp vc qgroundcontrol.pro

When I try to build project, it gives error.

Project MESSAGE : Qt version 5.2.1
Project ERROR : Unsupported build type

How can I fix this?

Answer 1

Qt 5.2.1 is unsupported as of writing this. See their issue tracker for details:

Switch to Qt >= 5.1 #286

Also, if you happen to use VS2013, that is also unsupported.