Note in R CRAN check — * checking top-level files … NOTE File README.md cannot be checked without ‘pandoc’ being installed

问题

I am checking my R package for CRAN submission, but there is one NOTE that I cannot get rid of. I googled it but seems this NOTE is not common thus I didn't find much useful information. Could any one provide me with a solution? Below is part of the output from R CMD check --as-cran.

* using R version 3.2.0 (2015-04-16)
* using platform: x86_64-apple-darwin13.4.0 (64-bit)
* using session charset: UTF-8
* using option ‘--as-cran’
...
...
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... NOTE
File README.md cannot be checked without ‘pandoc’ being installed.
* checking for left-over files ... OK
* checking index information ... OK

回答1:

You can install pandoc from within R using install.pandoc() from the installr package.

来源：https://stackoverflow.com/questions/32540940/note-in-r-cran-check-checking-top-level-files-note-file-readme-md-canno