Error(s) in re-building vignettes:
  ...
--- re-building ‘automation.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: 'xspliner'

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

    xspline

randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Quitting from lines 23-33 (automation.Rmd) 
Error: processing vignette 'automation.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘automation.Rmd’

--- re-building ‘cases.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: 'xspliner'

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

    xspline

Welcome to DALEX (version: 2.0).
Find examples and detailed introduction at: https://pbiecek.github.io/ema/


Attaching package: 'DALEX'

The following object is masked _by_ '.GlobalEnv':

    HR

Loading required package: lattice
Loading required package: ggplot2
Quitting from lines 37-48 (cases.Rmd) 
Error: processing vignette 'cases.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘cases.Rmd’

--- re-building ‘discrete.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.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Quitting from lines 88-95 (discrete.Rmd) 
Error: processing vignette 'discrete.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘discrete.Rmd’

--- re-building ‘extras.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.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Quitting from lines 28-45 (extras.Rmd) 
Error: processing vignette 'extras.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘extras.Rmd’

--- re-building ‘graphics.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.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Quitting from lines 45-46 (graphics.Rmd) 
Error: processing vignette 'graphics.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘graphics.Rmd’

--- re-building ‘methods.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: 'xspliner'

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

    xspline

randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Quitting from lines 17-32 (methods.Rmd) 
Error: processing vignette 'methods.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘methods.Rmd’

--- re-building ‘xspliner.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: 'ggplot2'

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

    margin

Quitting from lines 73-77 (xspliner.Rmd) 
Error: processing vignette 'xspliner.Rmd' failed with diagnostics:
there is no package called 'digest'
--- failed re-building ‘xspliner.Rmd’

SUMMARY: processing the following files failed:
  ‘automation.Rmd’ ‘cases.Rmd’ ‘discrete.Rmd’ ‘extras.Rmd’
  ‘graphics.Rmd’ ‘methods.Rmd’ ‘xspliner.Rmd’

Error: Vignette re-building failed.
Execution halted