Error(s) in re-building vignettes:
--- re-building 'ReconstructRoadHistory.Rmd' using rmarkdown

Quitting from ReconstructRoadHistory.Rmd:19-38 [setup]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! [rast] empty srs
---
Backtrace:
     ▆
  1. └─roads::prepExData(demoScen)
  2.   └─base::rapply(...)
  3.     ├─terra (local) `<stndrdGn>`(X, ...)
  4.     └─terra (local) `<stndrdGn>`(X, ...)
  5.       └─terra (local) .local(x, ...)
  6.         ├─base::eval(parse(text = x@definition))
  7.         │ └─base::eval(parse(text = x@definition))
  8.         ├─terra::rast(...)
  9.         └─terra::rast(...)
 10.           └─terra (local) .local(x = x, ...)
 11.             └─terra:::new_rast(...)
 12.               └─terra:::messages(r, "rast")
 13.                 └─terra:::error(f, x@pntr$getError())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'ReconstructRoadHistory.Rmd' failed with diagnostics:
[rast] empty srs
--- failed re-building 'ReconstructRoadHistory.Rmd'

--- re-building 'grade-penalty.Rmd' using rmarkdown

Quitting from grade-penalty.Rmd:25-33 [setup]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! [rast] empty srs
---
Backtrace:
     ▆
  1. └─roads::prepExData(dem_example)
  2.   └─base::rapply(...)
  3.     ├─terra (local) `<stndrdGn>`(X, ...)
  4.     └─terra (local) `<stndrdGn>`(X, ...)
  5.       └─terra (local) .local(x, ...)
  6.         ├─base::eval(parse(text = x@definition))
  7.         │ └─base::eval(parse(text = x@definition))
  8.         ├─terra::rast(...)
  9.         └─terra::rast(...)
 10.           └─terra (local) .local(x = x, ...)
 11.             └─terra:::new_rast(...)
 12.               └─terra:::messages(r, "rast")
 13.                 └─terra:::error(f, x@pntr$getError())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'grade-penalty.Rmd' failed with diagnostics:
[rast] empty srs
--- failed re-building 'grade-penalty.Rmd'

--- re-building 'roads-vignette.Rmd' using rmarkdown

Quitting from roads-vignette.Rmd:45-61 [setup]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! [rast] empty srs
---
Backtrace:
     ▆
  1. └─roads::prepExData(CLUSexample)
  2.   └─base::rapply(...)
  3.     ├─terra (local) `<stndrdGn>`(X, ...)
  4.     └─terra (local) `<stndrdGn>`(X, ...)
  5.       └─terra (local) .local(x, ...)
  6.         ├─base::eval(parse(text = x@definition))
  7.         │ └─base::eval(parse(text = x@definition))
  8.         ├─terra::rast(...)
  9.         └─terra::rast(...)
 10.           └─terra (local) .local(x = x, ...)
 11.             └─terra:::new_rast(...)
 12.               └─terra:::messages(r, "rast")
 13.                 └─terra:::error(f, x@pntr$getError())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'roads-vignette.Rmd' failed with diagnostics:
[rast] empty srs
--- failed re-building 'roads-vignette.Rmd'

SUMMARY: processing the following files failed:
  'ReconstructRoadHistory.Rmd' 'grade-penalty.Rmd' 'roads-vignette.Rmd'

Error: Vignette re-building failed.
Execution halted