Error(s) in re-building vignettes:
--- re-building ‘rosm.Rmd’ using rmarkdown
Using default API key for pickpoint.io. If batch geocoding, please get your own (free) API key at https://app.pickpoint.io/sign-up
Zoom: 13
Consider donating to the Open Street Map project at http://donate.openstreetmap.org/
Zoom: 13
Visit the Stamen cartography website at http://maps.stamen.com/
Copyright © 2020 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.
Zoom: 13
Copyright © 2020 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.
Zoom: 14
Zoom: 13
Consider donating to the Open Street Map project at http://donate.openstreetmap.org/
Copyright © 2020 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.
Zoom: 14
Warning in png::readPNG(bingfile) :
  libpng warning: iCCP: known incorrect sRGB profile
Audotdetect projection: assuming Google Mercator (epsg 3857)
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'rosm.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘rosm.Rmd’

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

Error: Vignette re-building failed.
Execution halted