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

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

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

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

--- re-building ‘make_lookup_df.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
No protocol specified
No protocol specified
No protocol specified
--- finished re-building ‘make_lookup_df.Rmd’

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

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

Attaching package: 'DOPE'

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

    parse


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 66-69 (parse_lookup.Rmd) 
Error: processing vignette 'parse_lookup.Rmd' failed with diagnostics:
Input must be a character vector of any length or a list of character
  vectors, each of which has a length of 1.
--- failed re-building ‘parse_lookup.Rmd’

SUMMARY: processing the following file failed:
  ‘parse_lookup.Rmd’

Error: Vignette re-building failed.
Execution halted