Can't one say "Der er ikke nogen i huset"?
Yup, which means "There isn't anybody in the house."
I put in the house is nobody--should be accepted
Then use the flag button in the sentence and submit a report. The sentence discussion is not the right place to do it.
What is the difference between ingen and nogen?
"Ingen" means "nobody/no one" and "nogen" means "somebody/someone"