yeah this is excruciatingly frustrating. I've been trying to get this framework to compile for three weeks, restarting the process from scratch more times than I can count.
I've managed to get everything up and running in visual studio 2017, examples compile, took a custom written visual studio plugin: https://forum.openframeworks.cc/t/visual-studio-2017/26063/23?u=figurehe4d
In fedora I was able to download QtC 4.2 get it installed, delete the previous config, download the libraries form your link, use the (correct) nightly build, but then I was left with a new problem: templates wouldn't load. the 'new project' would just create a single file with no other components (liek seen int he project browsers in my previous screenshots). this was even after placing the template folders into the right (as per documentation and my own exploration) paths.
So I tried again in visual studio, and had some success, after tracking down the right VS plugin.
Since i was able to get things running in visual studio, I tried to do the same with qt creator in windows, with msys2 as the compiler. There's some tricks involved with getting qt creator working. First, you need to have the right compilers selected, and then you need to have the templates for oF working. I don't know why, but I can't get the templates for new projects working, they show up but when creating a new project but don't appear in the project browser after said project has been initialized. This is where I was able to leave off with QtC in fedora, whereas with windows a the plugin was made by updating the previous one (2015).
This combined with several other users reporting the similar problems (dead ends) suggests it may be tied to housekeeping. because with both VS2017 and QtC the issues which required workarounds both are tied to the templates not being set up.
here is a list of other threads which have the same or similar problem
The libraries compile fine, the template folder has been placed in creator's share folder.
but when I make that new project it's empty, still throwing the "can't parse included file/not part of any projects"
as you can see, I can't even select 'build' for my project, even though I have compiler settings configured.
And msys2 is in my path, with success on installing dependancies and updates (as per the instructions)
kits are set up to use gcc in the msys2 directory.
At this point I will just get the ball rolling with visual studio, I'm already way behind on this project because of this install process.
edit, guess not with visual studio either, because the openframeworks plugin doesn't initialize projects correctly. I can compile the examples but not new projects ¯\_(ツ)_/¯