• using R version 3.6.0 (2019-04-26)
• using platform: x86_64-apple-darwin15.6.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘c3/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘c3’ version ‘0.3.0’
• 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 ‘c3’ can be installed ... [5s/5s] OK
• checking installed package size ... OK
• 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 ... [4s/4s] 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 installed files from ‘inst/doc’ ... OK
• checking files in ‘vignettes’ ... OK
• checking examples ... [4s/2s] OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [3s/3s] OK
    Running ‘testthat.R’ [3s/2s]
• 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 ... [2s/2s] WARNING
  Error(s) in re-building vignettes:
  --- re-building ‘examples.Rmd’ using rmarkdown
  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.
  
  Attaching package: 'dplyr'
  
  The following objects are masked from 'package:stats':
  
      filter, lag
  
  The following objects are masked from 'package:base':
  
      intersect, setdiff, setequal, union
  
  
  Attaching package: 'c3'
  
  The following object is masked from 'package:dplyr':
  
      %>%
  
  The following objects are masked from 'package:graphics':
  
      grid, legend
  
  PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
  Warning in normalizePath(f2) :
    path[1]="webshote6846e017576.png": No such file or directory
  Warning in file(con, "rb") :
    cannot open file 'webshote6846e017576.png': No such file or directory
  Quitting from lines 53-62 (examples.Rmd)
  Error: processing vignette 'examples.Rmd' failed with diagnostics:
  cannot open the connection
  --- failed re-building ‘examples.Rmd’
  
  SUMMARY: processing the following file failed:
    ‘examples.Rmd’
  
  Error: Vignette re-building failed.
  Execution halted
  
• checking PDF version of manual ... OK
• DONE
  Status: 1 WARNING