Error on opening RStudio

When RStuio opens, it says, "Error in .rs.parsePackageDependencies(contents, extension) : object 'partition_yaml_front_matter' not found". I seem to have the latest RStudio, R and all contributed packages. See below.

R version 4.2.1 (2022-06-23) -- "Funny-Looking Kid"
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Platform: x86_64-apple-darwin17.0 (64-bit)

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Error in .rs.parsePackageDependencies(contents, extension) :
object 'partition_yaml_front_matter' not found

sessionInfo()
R version 4.2.1 (2022-06-23)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 11.6.7

Matrix products: default
LAPACK: /Library/Frameworks/R.framework/Versions/4.2/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
[7] base

loaded via a namespace (and not attached):
[1] compiler_4.2.1 fastmap_1.1.0 cli_3.3.0
[4] htmltools_0.5.2 tools_4.2.1 rstudioapi_0.13
[7] yaml_2.3.5 rmarkdown_2.14 knitr_1.39
[10] xfun_0.31 digest_0.6.29 rlang_1.0.4
[13] evaluate_0.15

See Error in .rs.parsePackageDependencies(contents, extension) : object 'partition_yaml_front_matter' not found after update to R 4.2.1 · Issue #11552 · rstudio/rstudio · GitHub as suggested by @HanOostdijk in another thread.

Try closing RStudio, deleting the file .Rproj.user in the home directory, and restarting.

Worked for me, anyway.

Thanks. it worked. sg

Try opening several Rmd files, quit R and then relaunch. Does the message reappear? The number of times the message appears for me is the number of open files minus one. I can get it to stop by disabling Tools > Global Options > Code > Diagnostics > Prompt to install missing R packages discovered in R source files.

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