Error(s) in re-building vignettes:
  ...
--- re-building ‘resource_suitability.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: rsMove
Loading required package: raster
Loading required package: sp
Loading required package: rgdal
rgdal: version: 1.4-8, (SVN revision 845)
 Geospatial Data Abstraction Library extensions to R successfully loaded
 Loaded GDAL runtime: GDAL 2.2.4, released 2018/03/19
 Path to GDAL shared files: /usr/local/share/gdal
 GDAL binary built with GEOS: TRUE 
 Loaded PROJ.4 runtime: Rel. 5.2.0, September 15th, 2018, [PJ_VERSION: 520]
 Path to PROJ.4 shared files: (autodetected)
 Linking to sp version: 1.3-2 
Loading required package: ggplot2
Loading required package: knitr
Loading required package: kableExtra
Warning in library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE,  :
  there is no package called 'kableExtra'
Loading required package: caret
Loading required package: lattice
Loading required package: igraph

Attaching package: 'igraph'

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

    union

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

    decompose, spectrum

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

    union

Loading required package: randomForest
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'randomForest'

The following object is masked from 'package:ggplot2':

    margin

Loading required package: e1071

Attaching package: 'e1071'

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

    interpolate

Quitting from lines 136-137 (resource_suitability.Rmd) 
Error: processing vignette 'resource_suitability.Rmd' failed with diagnostics:
could not find function "kable_styling"
--- failed re-building ‘resource_suitability.Rmd’

SUMMARY: processing the following file failed:
  ‘resource_suitability.Rmd’

Error: Vignette re-building failed.
Execution halted