Hi, and welcome. A reproducible example, called a reprex would be helpful here.
Also, in RStudio, if you select File | New File | R Markdown | Document | pdf, can you knit the file? What version of R and R Studio? Are you on Mojave?
Hi, and welcome. A reproducible example, called a reprex would be helpful here.
Also, in RStudio, if you select File | New File | R Markdown | Document | pdf, can you knit the file? What version of R and R Studio? Are you on Mojave?