Error(s) in re-building vignettes:
--- re-building 'rasterdiv_01_Basics.Rmd' using rmarkdown

Quitting from rasterdiv_01_Basics.Rmd:25-27 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! [rast] empty srs
---
Backtrace:
     ▆
  1. └─rasterdiv::load_copNDVI()
  2.   ├─terra::rast(readRDS(rds_file))
  3.   └─terra::rast(readRDS(rds_file))
  4.     └─terra (local) .local(x, ...)
  5.       ├─terra::unwrap(x)
  6.       └─terra::unwrap(x)
  7.         └─terra (local) .local(x, ...)
  8.           ├─base::eval(parse(text = x@definition))
  9.           │ └─base::eval(parse(text = x@definition))
 10.           ├─terra::rast(...)
 11.           └─terra::rast(...)
 12.             └─terra (local) .local(x = x, ...)
 13.               └─terra:::new_rast(...)
 14.                 └─terra:::messages(r, "rast")
 15.                   └─terra:::error(f, x@pntr$getError())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'rasterdiv_01_Basics.Rmd' failed with diagnostics:
[rast] empty srs
--- failed re-building 'rasterdiv_01_Basics.Rmd'

--- re-building 'rasterdiv_02_Area_based_Rao.Rmd' using rmarkdown
--- finished re-building 'rasterdiv_02_Area_based_Rao.Rmd'

--- re-building 'rasterdiv_03_Advanced_multidimension_Rao.Rmd' using rmarkdown
--- finished re-building 'rasterdiv_03_Advanced_multidimension_Rao.Rmd'

--- re-building 'rasterdiv_04_Accumulation_Rao.Rmd' using rmarkdown

Quitting from rasterdiv_04_Accumulation_Rao.Rmd:37-39 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! [rast] empty srs
---
Backtrace:
     ▆
  1. └─rasterdiv::load_copNDVI()
  2.   ├─terra::rast(readRDS(rds_file))
  3.   └─terra::rast(readRDS(rds_file))
  4.     └─terra (local) .local(x, ...)
  5.       ├─terra::unwrap(x)
  6.       └─terra::unwrap(x)
  7.         └─terra (local) .local(x, ...)
  8.           ├─base::eval(parse(text = x@definition))
  9.           │ └─base::eval(parse(text = x@definition))
 10.           ├─terra::rast(...)
 11.           └─terra::rast(...)
 12.             └─terra (local) .local(x = x, ...)
 13.               └─terra:::new_rast(...)
 14.                 └─terra:::messages(r, "rast")
 15.                   └─terra:::error(f, x@pntr$getError())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'rasterdiv_04_Accumulation_Rao.Rmd' failed with diagnostics:
[rast] empty srs
--- failed re-building 'rasterdiv_04_Accumulation_Rao.Rmd'

SUMMARY: processing the following files failed:
  'rasterdiv_01_Basics.Rmd' 'rasterdiv_04_Accumulation_Rao.Rmd'

Error: Vignette re-building failed.
Execution halted