Getting
Visual Studio Community installed can be a bit intimidating as there are a heck of a lot of options in the install menu.
Seriously, it would help if we were told which install options we must use and which we don't need. That really should be explained in the OP.

(Also, I want to mention that the download link in the OP and on the project's GitHub page are both broken.)
Further, installing with multiple options will eat up
over 10 GB of HD space!

I ended up installing with the bare minimum - all options disabled. But even that takes up about 6 GB. This should also have been mentioned. If I had known it was going to consume that much space and if I had known about alternative IDE's that would work, I probably would have installed something else. (See
the IDE's section of the project's wiki page.) To be fair, though, a large chunk of the huge download is Microsoft .NET Framework 4.5.1 SDK, which needs to be installed even if an IDE alternative like SharpDevelop is used.
Also, I thought that I would mention that
the project files on HaploX1's GitHub do seem to have been updated for A15, in case anyone was wondering about that before deciding to try this.
Edit:Also, I could not find license information either in the OP, on the GitHub, on the wiki's Assembly Modding Example, or anywhere inside the files. Are we allowed to make a derivative (after giving proper credit, of course)?