I have (had) a working website made with blogdown. I tried to rebuild the site today for the first time in a couple months and I am getting errors because it apparently can't find my images.
To make a reprex I made a new project, and chose the "website with blogdown" option and took all the defaults. The website built without issues with blogdown:::serve_site(). I put a image named x.png into the static directory and added:
```{r x, fig.cap='x', tidy=FALSE}
knitr::include_graphics("x.png")
```
into the 2015-07-23-r-rmarkdown.Rmd file. When I tell it to blogdown:::serve_site() I get:
Error in knitr::include_graphics("x.png") :
Cannot find the file(s): "x.png"
Calls: local ... withCallingHandlers -> withVisible -> eval -> eval -> <Anonymous>
Execution halted
I then tried to add the image using the "Addins" menu and chose Insert Image
and pointed it to the file. It made a copy of the file and wrote the expected markdown into 2015-07-23-r-rmarkdown.Rmd:

That threw this error:
pandoc: /post/2015-07-23-r-rmarkdown_files/x.png: openBinaryFile: does not exist (No such file or directory)
Error: pandoc document conversion failed with error 1
Execution halted
Any ideas on what the heck is wrong?
> sessionInfo()
R version 3.6.2 (2019-12-12)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Catalina 10.15.3
Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] Rcpp_1.0.3 later_1.0.0 compiler_3.6.2 pillar_1.4.3
[5] prettyunits_1.1.1 tools_3.6.2 digest_0.6.25 packrat_0.5.0-25
[9] pkgbuild_1.0.6 jsonlite_1.6.1 evaluate_0.14 lifecycle_0.2.0
[13] tibble_2.1.3 gtable_0.3.0 pkgconfig_2.0.3 rlang_0.4.5
[17] cli_2.0.2 rstudioapi_0.11 parallel_3.6.2 yaml_2.2.1
[21] blogdown_0.18 xfun_0.12 loo_2.2.0 gridExtra_2.3
[25] stringr_1.4.0 dplyr_0.8.4 knitr_1.28 tidyselect_1.0.0
[29] stats4_3.6.2 grid_3.6.2 glue_1.3.1 inline_0.3.15
[33] R6_2.4.1 processx_3.4.2 fansi_0.4.1 rmarkdown_2.1
[37] bookdown_0.18 rstan_2.19.3 servr_0.16 purrr_0.3.3
[41] magrittr_1.5 callr_3.4.2 ggplot2_3.3.0 promises_1.1.0
[45] matrixStats_0.55.0 scales_1.1.0 ps_1.3.2 StanHeaders_2.21.0-1
[49] htmltools_0.4.0 rsconnect_0.8.16 assertthat_0.2.1 mime_0.9
[53] colorspace_1.4-1 httpuv_1.5.2 stringi_1.4.6 munsell_0.5.0
[57] crayon_1.3.4
> rmarkdown::pandoc_version()
[1] ‘2.7.3’
Thank you everybody. My original website needed the "error = FALSE" option added. I think because of changes made in knitr 1.28, this code failed:
knitr::include_graphics("/post/2019-12-10-installing-r-rstudio-on-windows_files/marginWin.png")
but this works:
knitr::include_graphics("/post/2019-12-10-installing-r-rstudio-on-windows_files/marginWin.png", error = FALSE)
I introduced a second problem when I was making the reprex. sigh... The path in the include_graphics() call needs to begin with a /