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

Quitting from event_prediction_after_enrollment_completion.Rmd:28-40 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 7/7 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─eventPred::getPrediction(...)
 2.   └─eventPred::predictEvent(...)
 3.     ├─...[]
 4.     └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'event_prediction_after_enrollment_completion.Rmd' failed with diagnostics:
attempt access index 7/7 in VECTOR_ELT
--- failed re-building ‘event_prediction_after_enrollment_completion.Rmd’

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

Quitting from event_prediction_at_the_design_stage.Rmd:69-83 [unnamed-chunk-5]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 9/9 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─eventPred::getPrediction(...)
 2.   └─eventPred::predictEvent(...)
 3.     ├─...[]
 4.     └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'event_prediction_at_the_design_stage.Rmd' failed with diagnostics:
attempt access index 9/9 in VECTOR_ELT
--- failed re-building ‘event_prediction_at_the_design_stage.Rmd’

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

Quitting from event_prediction_before_enrollment_completion.Rmd:27-40 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 7/7 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─eventPred::getPrediction(...)
 2.   └─eventPred::predictEvent(...)
 3.     ├─...[]
 4.     └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'event_prediction_before_enrollment_completion.Rmd' failed with diagnostics:
attempt access index 7/7 in VECTOR_ELT
--- failed re-building ‘event_prediction_before_enrollment_completion.Rmd’

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

Quitting from event_prediction_incorporating_covariates.Rmd:28-45 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 7/7 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─eventPred::getPrediction(...)
 2.   └─eventPred::predictEvent(...)
 3.     ├─...[]
 4.     └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'event_prediction_incorporating_covariates.Rmd' failed with diagnostics:
attempt access index 7/7 in VECTOR_ELT
--- failed re-building ‘event_prediction_incorporating_covariates.Rmd’

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

Quitting from event_prediction_incorporating_prior_information.Rmd:27-48 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 7/7 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─eventPred::getPrediction(...)
 2.   └─eventPred::predictEvent(...)
 3.     ├─...[]
 4.     └─data.table:::`[.data.table`(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'event_prediction_incorporating_prior_information.Rmd' failed with diagnostics:
attempt access index 7/7 in VECTOR_ELT
--- failed re-building ‘event_prediction_incorporating_prior_information.Rmd’

SUMMARY: processing the following files failed:
  ‘event_prediction_after_enrollment_completion.Rmd’
  ‘event_prediction_at_the_design_stage.Rmd’
  ‘event_prediction_before_enrollment_completion.Rmd’
  ‘event_prediction_incorporating_covariates.Rmd’
  ‘event_prediction_incorporating_prior_information.Rmd’

Error: Vignette re-building failed.
Execution halted