Last week I was not able to knit my homework, and spent a long time researching the issue and never was able to figure it out. I thought maybe I had input or typed something invalid in the markdown file, but I realized that I get an error trying to knit even the default markdown (same error I got every time last week). I have attached a screenshot of this instance.
I have since reinstalled RStudio, reinstalled both the rmarkdown and knitr packages, removed and reinstalled YAML, and I still cannot knit the default R markdown document.
It is the same error each time:
Error in yaml::yaml.load(..., eval.expr = TRUE) :
unused argument (eval.expr = TRUE)
Calls: ... parse_yaml_front_matter -> yaml_load ->
Any help would be greatly appreciated.