What I try to do in these cases is to shoot in Manual and with manual focus using Live-view to assist. Of course you can always use the flash, that should help.

Have you got the AF light turned on? In alternative, you can use a torchlight or a smartphone flashlight to lit the scene and autofocus before taking the shot.

Nikon D3100 Won't Take Photo -- says light is too low
I know some questions were migrated from SO to dba.SE. My question is how can one one flag that a particular question be moved to DBA. I have reputation around 1400 on SO. How can on do it?

I found this question and I though this is DBA related but it might not be.

Roles vs Schema

Also I want to know how strictly this rule is followed that dba related question should be migrated to DBA although SO is also programming related forum.
