Error(s) in re-building vignettes:
  ...
--- re-building ‘KNetworkFunctions.Rmd’ using rmarkdown

Quitting from KNetworkFunctions.Rmd:63-77 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 4/4 in VECTOR_ELT
---
Backtrace:
    ▆
 1. ├─base::withVisible(knit_print(x, ...))
 2. ├─knitr::knit_print(x, ...)
 3. └─tmap:::knit_print.tmap(x, ...)
 4.   └─tmap:::print.tmap(x, knit = TRUE, options = options, ...)
 5.     └─tmap:::step4_plot(...)
 6.       ├─...[]
 7.       └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'KNetworkFunctions.Rmd' failed with diagnostics:
attempt access index 4/4 in VECTOR_ELT
--- failed re-building ‘KNetworkFunctions.Rmd’

--- re-building ‘NKDE.Rmd’ using rmarkdown

Quitting from NKDE.Rmd:313-331 [unnamed-chunk-5]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 4/4 in VECTOR_ELT
---
Backtrace:
    ▆
 1. ├─base::withVisible(knit_print(x, ...))
 2. ├─knitr::knit_print(x, ...)
 3. └─tmap:::knit_print.tmap(x, ...)
 4.   └─tmap:::print.tmap(x, knit = TRUE, options = options, ...)
 5.     └─tmap:::step4_plot(...)
 6.       ├─...[]
 7.       └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'NKDE.Rmd' failed with diagnostics:
attempt access index 4/4 in VECTOR_ELT
--- failed re-building ‘NKDE.Rmd’

--- re-building ‘NetworkBuilding.Rmd’ using rmarkdown

Quitting from NetworkBuilding.Rmd:36-51 [unnamed-chunk-1]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 4/4 in VECTOR_ELT
---
Backtrace:
    ▆
 1. ├─base::withVisible(knit_print(x, ...))
 2. ├─knitr::knit_print(x, ...)
 3. └─tmap:::knit_print.tmap(x, ...)
 4.   └─tmap:::print.tmap(x, knit = TRUE, options = options, ...)
 5.     └─tmap:::step4_plot(...)
 6.       ├─...[]
 7.       └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'NetworkBuilding.Rmd' failed with diagnostics:
attempt access index 4/4 in VECTOR_ELT
--- failed re-building ‘NetworkBuilding.Rmd’

--- re-building ‘SpatialWeightMatrices.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘SpatialWeightMatrices.Rmd’

--- re-building ‘TNKDE.Rmd’ using rmarkdown

Quitting from TNKDE.Rmd:155-164 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 4/4 in VECTOR_ELT
---
Backtrace:
    ▆
 1. ├─base::withVisible(knit_print(x, ...))
 2. ├─knitr::knit_print(x, ...)
 3. └─tmap:::knit_print.tmap(x, ...)
 4.   └─tmap:::print.tmap(x, knit = TRUE, options = options, ...)
 5.     └─tmap:::step4_plot(...)
 6.       ├─...[]
 7.       └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'TNKDE.Rmd' failed with diagnostics:
attempt access index 4/4 in VECTOR_ELT
--- failed re-building ‘TNKDE.Rmd’

SUMMARY: processing the following files failed:
  ‘KNetworkFunctions.Rmd’ ‘NKDE.Rmd’ ‘NetworkBuilding.Rmd’ ‘TNKDE.Rmd’

Error: Vignette re-building failed.
Execution halted