Error(s) in re-building vignettes:
--- re-building 'wildlifeDI-vignette-contact_analysis.Rmd' using rmarkdown
Loading required package: sp
Loading required package: ade4
Loading required package: adehabitatMA
Loading required package: CircStats
Loading required package: MASS
Loading required package: boot
Linking to GEOS 3.8.0, GDAL 3.0.4, PROJ 6.3.1
Quitting from lines 133-140 (wildlifeDI-vignette-contact_analysis.Rmd) 
Error: processing vignette 'wildlifeDI-vignette-contact_analysis.Rmd' failed with diagnostics:
Problem with `summarise()` input `id`.
x 'min' not meaningful for factors
i Input `id` is `min(id)`.
i The error occurred in group 1: contact_pha = 1.
--- failed re-building 'wildlifeDI-vignette-contact_analysis.Rmd'

--- re-building 'wildlifeDI-vignette.rmd' using rmarkdown
Loading required package: sp
Loading required package: deldir
deldir 0.2-10      Nickname: "Morpheus and Euripides"

     Note 1: As of version 0.2-1, error handling in this 
     package was amended to conform to the usual R protocol. 
     The deldir() function now actually throws an error 
     when one occurs, rather than displaying an error number 
     and returning a NULL.
 
     Note 2:  As of version 0.1-29 the arguments "col" 
     and "lty" of plot.deldir() had their names changed to 
     "cmpnt_col" and "cmpnt_lty" respectively basically 
     to allow "col" and and "lty" to be passed as "..." 
     arguments.
 
     Note 3: As of version 0.1-29 the "plotit" argument 
     of deldir() was changed to (simply) "plot".
 
     See the help for deldir() and plot.deldir().

Loading required package: ade4
Loading required package: adehabitatMA
Loading required package: adehabitatLT
Loading required package: CircStats
Loading required package: MASS
Loading required package: boot
rgeos version: 0.5-5, (SVN revision 640)
 GEOS runtime version: 3.8.0-CAPI-1.13.1 
 Linking to sp version: 1.4-5 
 Polygon checking: TRUE 

--- finished re-building 'wildlifeDI-vignette.rmd'

SUMMARY: processing the following file failed:
  'wildlifeDI-vignette-contact_analysis.Rmd'

Error: Vignette re-building failed.
Execution halted