• using R version 3.5.2 (2018-12-20)
• using platform: x86_64-apple-darwin15.6.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘DiagrammeR/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘DiagrammeR’ version ‘1.0.5’
• package encoding: UTF-8
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking whether package ‘DiagrammeR’ can be installed ... [15s/15s] OK
• checking installed package size ... NOTE
    installed size is 17.1Mb
    sub-directories of 1Mb or more:
      doc 9.7Mb
      htmlwidgets 5.9Mb
• checking package directory ... OK
• checking ‘build’ directory ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [24s/24s] OK
• checking Rd files ... OK
• checking Rd metadata ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking contents of ‘data’ directory ... OK
• checking data for non-ASCII characters ... NOTE
    Note: found 1 marked UTF-8 string
• checking data for ASCII and uncompressed saves ... OK
• checking installed files from ‘inst/doc’ ... OK
• checking files in ‘vignettes’ ... OK
• checking examples ... [25s/23s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [44s/42s] OK
    Running ‘testthat.R’ [44s/42s]
• checking for unstated dependencies in vignettes ... OK
• checking package vignettes in ‘inst/doc’ ... OK
• checking running R code from vignettes ... NONE
• checking re-building of vignette outputs ... [1s/1s] WARNING
  Error in re-building vignettes:
    ...
  Warning in engine$weave(file, quiet = quiet, encoding = enc) :
    Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
  Quitting from lines 57-79 (graphviz-mermaid.Rmd)
  Error: processing vignette 'graphviz-mermaid.Rmd' failed with diagnostics:
  cannot open the connection
  Execution halted
  
• checking PDF version of manual ... OK
• DONE
  Status: 1 WARNING, 2 NOTEs