Knitting to PDF

Hi, welcome!

We don't really have enough info to help you out. Could you ask this with a minimal REPRoducible EXample (reprex)? A reprex makes it much easier for others to understand your issue and figure out how to help.

If you've never heard of a reprex before, you might want to start by reading this FAQ:FAQ: How to do a minimal reproducible example ( reprex ) for beginners

In your case, I understand you are working with rmarkdown and latex. This kind of error may point toward a wrong formatting in yaml header or other parts. Without your code, we can't tell you much.