[R-SIG-Mac] "R CMD build" ...Error... "processing vignette ... failed with diagnostics:, Pandoc is required to build R Markdown vignettes but not available."

[Jeff Newmiller]

Don't assume the system environment variables defined at the R command prompt are the same as the environment variables defined at the shell prompt. Various R startup scripts often alter these variables within R. It looks from my obscured position like the pandoc install directory is present in your PATH directory from the shell.

On June 13, 2024 10:09:25 AM PDT, Spencer Graves <spencer.graves using prodsyse.com> wrote:
>Hello, All:
>
>
>	  "R CMD build" fails for me, apparently because it cannot find pandoc, even though R in a command prompt finds it. This is with R 4.4.0 under macOS 14.5. I get the following in a Terminal:
>
>
>___% R CMD build fda
>* checking for file ‘fda/DESCRIPTION’ ... OK
>* preparing ‘fda’:
>* checking DESCRIPTION meta-information ... OK
>* installing the package to build vignettes
>* creating vignettes ... ERROR
>--- re-building ‘BasisBasics.Rmd’ using rmarkdown
>Error: processing vignette 'BasisBasics.Rmd' failed with diagnostics:
>Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
>
>
>	  "Pandoc 3.2 already installed", per the following interaction with R in said Terminal:
>	
>
>> library(pandoc)
>> pandoc_install()
>ℹ Fetching Pandoc releases info from github...
>✔ Pandoc 3.2 already installed.
>  Use 'force = TRUE' to overwrite.
>>
>>
>> pandoc_is_active()
>Error in pandoc_is_active() :
>  argument "version" is missing, with no default
>> pandoc_is_active("system")
>[1] FALSE
>> pandoc_locate()
>[1] "~/Library/Application Support/r-pandoc/3.2"
>
>	
>	  sessionInfo() below.
>	  Suggestions?
>	  Thanks,
>	  Spencer Graves
>
>
>> sessionInfo()
>R version 4.4.0 (2024-04-24)
>Platform: aarch64-apple-darwin20
>Running under: macOS Sonoma 14.5
>
>Matrix products: default
>BLAS: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRblas.0.dylib 
>LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.0
>
>locale:
>[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>
>time zone: America/Chicago
>tzcode source: internal
>
>attached base packages:
>[1] stats     graphics  grDevices utils     datasets  methods   base
>
>other attached packages:
>[1] pandoc_0.2.0
>
>loaded via a namespace (and not attached):
> [1] R6_2.5.1        utf8_1.2.4      gh_1.4.1        magrittr_2.0.3
> [5] rappdirs_0.3.3  glue_1.7.0      tibble_3.2.1    pkgconfig_2.0.3
> [9] gitcreds_0.1.2  lifecycle_1.0.4 cli_3.6.2       fansi_1.0.6
>[13] vctrs_0.6.5     compiler_4.4.0  curl_5.2.1      pillar_1.9.0
>[17] httr2_1.0.1     rlang_1.1.4     jsonlite_1.8.8  fs_1.6.4
>
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-- 
Sent from my phone. Please excuse my brevity.