Just in case anyone comes across the same problem: I got the "Cannot Load SVG Importer Settings! Please Move SVG Importer Settings into Resource folder." error while opening a project made in Unity 5.5 into 2017.1, that used a previous version of the SVG Importer asset. Nothing I did solve the problem, and Unity even crashed if I tried to apply settings to already imported SVG assets. After trying every other potential solution I found, I remembered this was a computer, and that computer tend to have weird behavior (as if they had some sort of personality), so I just deleted the whole plugin from the project and re-imported it afterward (contrary to just "upgrading" it to the newest version). It seems to have done the trick. I supposed some of the files were not being overwritten in the "upgrade" process, and at least now it is not throwing the error. Good luck if you've been here.