Error(s) in re-building vignettes:
  ...
--- re-building ‘codebook.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

Attaching package: 'labelled'

The following object is masked from 'package:codebook':

    to_factor

Quitting from lines NA-15 (codebook.Rmd) 
Error: processing vignette 'codebook.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘codebook.Rmd’

--- re-building ‘codebook_qualtrics.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning in if (grepl("labelled", class(x[[i]]))) { :
  the condition has length > 1 and only the first element will be used
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Warning: Unknown or uninitialised column: `foreign`.
Quitting from lines NA-15 (codebook_qualtrics.Rmd) 
Error: processing vignette 'codebook_qualtrics.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘codebook_qualtrics.Rmd’

--- re-building ‘codebook_sav.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Quitting from lines NA-15 (codebook_sav.Rmd) 
Error: processing vignette 'codebook_sav.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘codebook_sav.Rmd’

--- re-building ‘codebook_tutorial.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Quitting from lines NA-15 (codebook_tutorial.Rmd) 
Error: processing vignette 'codebook_tutorial.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘codebook_tutorial.Rmd’

SUMMARY: processing the following files failed:
  ‘codebook.Rmd’ ‘codebook_qualtrics.Rmd’ ‘codebook_sav.Rmd’
  ‘codebook_tutorial.Rmd’

Error: Vignette re-building failed.
Execution halted