Error(s) in re-building vignettes:
  ...
--- re-building ‘AQuadtreeUse.Rmd’ using rmarkdown
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-5'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

Warning: `summarise_()` is deprecated as of dplyr 0.7.0.
Please use `summarise()` instead.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.
layer:2

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum North_American_Datum_1983 in CRS definition,
 but +towgs84= values preserved
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-6'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-7'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum North_American_Datum_1983 in CRS definition,
 but +towgs84= values preserved
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-8'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-9'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

layer:5

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in proj4string(object) :
  CRS object has comment, which is lost in output
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-10'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

layer:5

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
layer:1

layer:2

layer:3

layer:4

layer:5

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-11'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

layer:1

layer:2

layer:3

layer:4

Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO") :
  Discarded datum Unknown based on GRS80 ellipsoid in CRS definition,
 but +towgs84= values preserved
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-12'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-13'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-14'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-15'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

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 'AQuadtreeUse.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘AQuadtreeUse.Rmd’

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

Error: Vignette re-building failed.
Execution halted