Error(s) in re-building vignettes:
--- re-building 'v01-introduction.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v01-introduction.Rmd'

--- re-building 'v02-datagroups.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v02-datagroups.Rmd'

--- re-building 'v03-calculations.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v03-calculations.Rmd'

--- re-building 'v04-outputs.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v04-outputs.Rmd'

--- re-building 'v05-latexoutput.Rmd' using rmarkdown
--- finished re-building 'v05-latexoutput.Rmd'

--- re-building 'v06-styling.Rmd' using rmarkdown
--- finished re-building 'v06-styling.Rmd'

--- re-building 'v07-findingandformatting.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v07-findingandformatting.Rmd'

--- re-building 'v08-cellcontext.Rmd' using rmarkdown

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


Attaching package: 'lubridate'

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

    date

--- finished re-building 'v08-cellcontext.Rmd'

--- re-building 'v09-irregularlayout.Rmd' using rmarkdown

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 286-311 (v09-irregularlayout.Rmd) 
Error: processing vignette 'v09-irregularlayout.Rmd' failed with diagnostics:
package 'methods' required by 'lubridate' could not be found
--- failed re-building 'v09-irregularlayout.Rmd'







SUMMARY: processing the following files failed:
  'v09-irregularlayout.Rmd' 'v10-performance.Rmd' 'v11-shiny.Rmd'
  'v12-excelexport.Rmd' 'vA1-appendix.Rmd' 'vA2-appendix.Rmd'
  'vA3-appendix.Rmd'

Error: Vignette re-building failed.
Execution halted