|................ | 31% [unnamed-chunk-1]

Hi, I am writing a project. And when I want to knight it, |................ | 31% [unnamed-chunk-1] problem shows off.

I am really a beginner in R, I hope it is not a stupid question to ask. But nothing that I found so far worked for me.

Is 31% means like a line 31? If yes, this is my chunk on that line ```{r setup, include=FALSE}
knitr::opts_chunk$set(cache = FALSE, echo = TRUE, message = FALSE, warning = FALSE)

It does not mean line 31. It happens at the first chunk that does not have a name. The best is to name all your chunks, and then you'll immediately see where the problem happens.