Error(s) in re-building vignettes:
--- re-building 'Newer_resamplers.Rmd' using knitr

Quitting from Newer_resamplers.Rmd:99-101 [unnamed-chunk-5]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 1/1 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─soak_default$clone()$instantiate(reg.task)
 2.   └─mlr3:::.__Resampling__instantiate(...)
 3.     └─private$.get_instance(task)
 4.       └─mlr3resampling:::.__ResamplingSameOtherSizesCV__.get_instance(...)
 5.         ├─...[]
 6.         └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Newer_resamplers.Rmd' failed with diagnostics:
attempt access index 1/1 in VECTOR_ELT
--- failed re-building 'Newer_resamplers.Rmd'

--- re-building 'Older_resamplers.Rmd' using knitr

Quitting from Older_resamplers.Rmd:151-156 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 1/1 in VECTOR_ELT
---
Backtrace:
     ▆
  1. └─mlr3::benchmark_grid(reg.task.list, reg.learner.list, reg_same_other)
  2.   └─mlr3misc::pmap(grid, function(task, resampling) resamplings[[resampling]]$clone()$instantiate(tasks[[task]]))
  3.     └─mlr3misc:::mapply_list(.f, .x, list(...))
  4.       └─base::.mapply(.f, .dots, .args)
  5.         └─mlr3 (local) `<fn>`(task = dots[[1L]][[1L]], resampling = dots[[2L]][[1L]])
  6.           └─resamplings[[resampling]]$clone()$instantiate(tasks[[task]])
  7.             └─mlr3:::.__Resampling__instantiate(...)
  8.               └─private$.get_instance(task)
  9.                 └─mlr3resampling:::.__ResamplingSameOtherCV__.get_instance(...)
 10.                   ├─task$data(cols = subset.name.vec)[, `:=`(subset, .GRP), by = subset.name.vec]
 11.                   └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Older_resamplers.Rmd' failed with diagnostics:
attempt access index 1/1 in VECTOR_ELT
--- failed re-building 'Older_resamplers.Rmd'

SUMMARY: processing the following files failed:
  'Newer_resamplers.Rmd' 'Older_resamplers.Rmd'

Error: Vignette re-building failed.
Execution halted