Trying to Install RMarkdown Package Error

[rocklee]

Hi I'm new to R studio (need it for a stat class I'm taking). I have a Mac and am trying to download the Rmarkdown package but keep getting this error. If someone could help me that would be great.

Installing 'rmarkdown' for R Markdown...
  There is a binary version available but the source version is later:
          binary source needs_compilation
rmarkdown    2.3    2.4             FALSE
installing the source package ‘rmarkdown’

trying URL 'https://cran.rstudio.com/src/contrib/rmarkdown_2.4.tar.gz'
Content type 'application/x-gzip' length 3202546 bytes (3.1 MB)
==================================================
downloaded 3.1 MB

* installing *source* package ‘rmarkdown’ ...
** package ‘rmarkdown’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** inst
** byte-compile and prepare package for lazy loading
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
  there is no package called ‘rlang’
Calls: <Anonymous> ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted
ERROR: lazy loading failed for package ‘rmarkdown’
* removing ‘/Library/Frameworks/R.framework/Versions/4.0/Resources/library/rmarkdown’

The downloaded source packages are in
	‘/private/var/folders/jl/jwj5kppj6cdfw1jfj04433t00000gn/T/RtmpLSTvuj/downloaded_packages’


✔ Package 'rmarkdown' successfully installed.
Warning message:
In utils::install.packages("rmarkdown", repos = "https://cran.rstudio.com/") :
  installation of package ‘rmarkdown’ had non-zero exit status

[andresrcs]

@rocklee

Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
  there is no package called ‘rlang’

You are missing a package dependency, try to install it, if you get any different error message, post it here.

install.packages("rlang")

[rocklee]

Hi, I tried installing "rlang" but received this error.

installing the source package ‘rlang’

trying URL 'https://cran.rstudio.com/src/contrib/rlang_0.4.8.tar.gz'
Content type 'application/x-gzip' length 847517 bytes (827 KB)
==================================================
downloaded 827 KB

* installing *source* package ‘rlang’ ...
** package ‘rlang’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
xcode-select: note: no developer tools were found at '/Applications/Xcode.app', requesting install. Choose an option in the dialog to download the command line developer tools.
ERROR: compilation failed for package ‘rlang’
* removing ‘/Library/Frameworks/R.framework/Versions/4.0/Resources/library/rlang’
Warning in install.packages :
  installation of package ‘rlang’ had non-zero exit status

The downloaded source packages are in
	‘/private/var/folders/jl/jwj5kppj6cdfw1jfj04433t00000gn/T/RtmpCtVdse/downloaded_packages’

I think I am missing developer tools but when I try to install I get this

[andresrcs]

This is a macOS specific issue, try the solution described on this related thread.

You can't install the software because it's not available on the software update server

I ended up removing my current command line tools in terminal: sudo rm -rf /Library/Developer/CommandLineTools then I downloaded an older version of the command line tools since git was my main problem and it no longer runs on OSX 10.15. (https://github.com/Homebrew/homebrew-core/issues/52490) I did this by going to https://developer.apple.com/download/more/ and downloading Command Line Tools 11.3.1! It works now. Not a permanent fix, but helped.

[rocklee]

I was able to make it work! Thank you so much!

[cderv]

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