What is rankingsInDb?

[brush111111111111]

Hi. I've created my own feather file for Rat genome and tried to run SCENIC with it, and SCENIC throws this error when I run
scenicOptions <- runSCENIC_2_createRegulons(scenicOptions).

Also, when I import my feathers when initializing, SCENIC throws a warning

Missing annotations for: 500bp 10kb

I tried using the default mouse database on my rat dataset with everything else the same and the entire SCENIC process runs fine, so something must be wrong with my feather file.

I created my feather following aertslab/create_cisTarget_databases#4 , and the outputs were all normal. Genes were ranked properly, and importRankings had no problem reading it. So I am unsure what I'm missing, and what rankingsInDB is.