! Package pdftex.def Error - when knitting to PDF - pdf

Question

I am able to knit to PDF for the example below:
---
title: "R Notebook"
output:
pdf_document: default
html_notebook: default
html_document:
df_print: paged
---
Table 1 example:
```{r, warning=FALSE, message=FALSE, echo=FALSE, include=FALSE, fig.pos="H"}
library(magrittr)
library(tidyverse)
library(kableExtra)
library(readxl)
library(modelsummary)
library(scales)
tmp <- mtcars
# create a list with individual variables
# remove missing and rescale
tmp_list <- lapply(tmp, na.omit)
tmp_list <- lapply(tmp_list, scale)
# create a table with `datasummary`
# add a histogram with column_spec and spec_hist
# add a boxplot with colun_spec and spec_box
emptycol = function(x) " "
final_4_table <- datasummary(mpg + cyl + disp + hp + drat + wt + qsec + vs + am + gear + carb ~ N + Mean + SD + Heading("Boxplot") * emptycol + Heading("Histogram") * emptycol, data = tmp) %>%
column_spec(column = 5, image = spec_boxplot(tmp_list)) %>%
column_spec(column = 6, image = spec_hist(tmp_list))
```
```{r finaltable, echo=FALSE}
final_4_table
```
However, I cannot knit to PDF my own code which involves more variables. My R Markdown starts by reading my excel file and then it is pretty much the same as example above:
---
title: "table1"
output:
pdf_document: default
html_document:
df_print: paged
---
Table 1
```{r prep-tableone, message=FALSE, warning=FALSE, echo=FALSE, include=FALSE, fig.pos="H"}
library(magrittr)
library(tidyverse)
library(kableExtra)
library(readxl)
library(modelsummary)
library(scales)
### set directory
setwd("/etcetc1")
## read dataset
my_dataset <- read_excel("my_dataset.xlsx")
my_dataset <- as.data.frame(my_dataset)
...
I can run this code in R script; it works just fine. I can also knit this code to HTML just fine. When trying to knit to PDF I get the following error:
output file: table1test.knit.md
! Package pdftex.def Error: File `table1test_files/figure-latex//boxplot_65c214bae9bb.pdf' not found: using draft setting.
Error: LaTeX failed to compile table1test.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See table1test.log for more info.
In addition: Warning messages:
1: package 'ggplot2' was built under R version 4.1.1
2: package 'tibble' was built under R version 4.1.1
3: package 'tidyr' was built under R version 4.1.1
4: In in_dir(input_dir(), evaluate(code, envir = env, new_device = FALSE, :
You changed the working directory to /etcetc1 (probably via setwd()). It will be restored to /etcetc2. See the Note section in ?knitr::knit
Execution halted
Am I missing any packages? Do you know what might be happening?
I use TeXShop for LaTeX.