the .import files are fine, I only have those as well, so it's not an issue,
The only errors are in resource loader lines 149 and 186, and scene format text.cpp line 439.
Again, I don't have these errors, or the OS you're using, so I'm not a huge help, but I find that when I have errors (usually from mods) fixing one fixes others. For instance, at one point, I had like...20? or so errors (I had been trying to combine like 3 mod's files into one, since a lot of them overwrite the others, didn't work after like...a week of trying, so I gave up xP) and I couldn't find the errors being mentioned for most of them, so I found and fixed one that I could find, and boom, like, half the errors vanished.