Error(s) in re-building vignettes:
  ...
--- re-building ‘SurvivalOverview.Rmd’ using rmarkdown
Loading required package: ggplot2
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'SurvivalOverview.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘SurvivalOverview.Rmd’

--- re-building ‘gsSurvBasicExamples.Rmd’ using rmarkdown
Scale for 'y' is already present. Adding another scale
for 'y', which will replace the existing scale.
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'gsSurvBasicExamples.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘gsSurvBasicExamples.Rmd’

--- re-building ‘hGraph.Rmd’ using rmarkdown
Loading required package: ggplot2

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: 'gridExtra'

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

    combine

pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'hGraph.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘hGraph.Rmd’

--- re-building ‘nNormal.Rmd’ using rmarkdown
Loading required package: ggplot2
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'nNormal.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘nNormal.Rmd’

--- re-building ‘tests_and_coverage.Rmd’ using rmarkdown
--- finished re-building ‘tests_and_coverage.Rmd’

SUMMARY: processing the following files failed:
  ‘SurvivalOverview.Rmd’ ‘gsSurvBasicExamples.Rmd’ ‘hGraph.Rmd’
  ‘nNormal.Rmd’

Error: Vignette re-building failed.
Execution halted