I've encountered strange false-positive messages in RStudio when knitting a document. The message points to a chunk (indicating line xx) in the .Rmd document, and the document is not opened. The text of the message is completely obscure to me. When I remove the chunk (which wasn't a problem, say, yesterday) it then opens. I then re-insert the chunk and it continues to knit fine. This last happened to me when I was working with a Xaringan-related .Rmd.
I've also noticed the following in some .Rmd documents I see on the web:
I don't include those in my .Rmds (except for the "include = FALSE" one).
I don't know what the other options in the Red Boxes are. Can someone point to to guidance about these options ? If I include those related to "warning" and "message," will that preclude the false-positive occurrences ?