I built Aesir from scratch then ran it. Although it can't seem to convert the maps from my data.grf.
Here's my aesir.json. And yes, my GRF contains the file Aesir reported.
{
"lang": "en",
"server": "127.0.0.1:6200",
"grfs": [ "data.grf" ]
}
Since there is no library for linking with sqlite3 provided by default, I compiled mine on VS2017 and decided to release it here
Pardon me if this is not the appropriate section.
sqlite3.lib