Error(s) in re-building vignettes:
  ...
--- re-building ‘i-introduction.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.
--- finished re-building ‘i-introduction.Rmd’

--- re-building ‘ii-modules.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: 'igraph'

The following objects are masked from 'package:stats':

    decompose, spectrum

The following object is masked from 'package:base':

    union

Loading required package: quickPlot
Loading required package: reproducible

Attaching package: 'SpaDES.core'

The following objects are masked from 'package:stats':

    end, start

The following object is masked from 'package:utils':

    citation

Loading required package: SpaDES.tools
Loading required package: RandomFields
Loading required package: sp
Loading required package: RandomFieldsUtils

Attaching package: 'RandomFields'

The following object is masked from 'package:RandomFieldsUtils':

    RFoptions

Setting:
  options(
    spades.modulePath = '/home/ripley/R/Lib32/SpaDES.core/sampleModules'
  )
Paths set to:
  options(
    reproducible.cachePath = '/tmp/RtmpLIai_f/reproducible/cache'
    spades.inputPath = '/tmp/RtmpQxaWyk/SpaDES/inputs'
    spades.outputPath = '/tmp/RtmpQxaWyk/SpaDES/outputs'
    spades.modulePath = '/home/ripley/R/Lib32/SpaDES.core/sampleModules'
  )
Quitting from lines 376-382 (ii-modules.Rmd) 
Error: processing vignette 'ii-modules.Rmd' failed with diagnostics:
there is no package called 'webshot'
--- failed re-building ‘ii-modules.Rmd’

--- re-building ‘iii-cache.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.
Loading required package: sp

Attaching package: 'raster'

The following object is masked from 'package:magrittr':

    extract

Loading required package: quickPlot
Loading required package: reproducible

Attaching package: 'SpaDES.core'

The following objects are masked from 'package:stats':

    end, start

The following object is masked from 'package:utils':

    citation

Setting:
  options(
    spades.modulePath = '/home/ripley/R/Lib32/SpaDES.core/sampleModules'
  )
Paths set to:
  options(
    reproducible.cachePath = '/tmp/RtmpLIai_f/reproducible/cache'
    spades.inputPath = '/tmp/RtmpQxaWyk/SpaDES/inputs'
    spades.outputPath = '/tmp/RtmpQxaWyk/SpaDES/outputs'
    spades.modulePath = '/home/ripley/R/Lib32/SpaDES.core/sampleModules'
  )
--- finished re-building ‘iii-cache.Rmd’

SUMMARY: processing the following file failed:
  ‘ii-modules.Rmd’

Error: Vignette re-building failed.
Execution halted