Error(s) in re-building vignettes:
  ...
--- re-building 'FFD-tibble-how-to.Rmd' using rmarkdown
Loading required package: rvest
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

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

    as.Date, as.Date.numeric

Loading required package: xml2
Loading required package: plyr
Be aware that in this version of the FFdownload-Package I have renamed the output dataset to 'FFdata',
                        and the input variable for temporary directories to 'tempd'. This might break old code.

Attaching package: 'dplyr'

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

    arrange, count, desc, failwith, id, mutate, rename, summarise,
    summarize

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

    first, last

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 36-38 (FFD-tibble-how-to.Rmd) 
Error: processing vignette 'FFD-tibble-how-to.Rmd' failed with diagnostics:
Timeout was reached: [mba.tuck.dartmouth.edu] Resolving timed out after 10000 milliseconds
--- failed re-building 'FFD-tibble-how-to.Rmd'

--- re-building 'FFD-xts-how-to.Rmd' using rmarkdown
Loading required package: rvest
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

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

    as.Date, as.Date.numeric

Loading required package: xml2
Loading required package: plyr
Be aware that in this version of the FFdownload-Package I have renamed the output dataset to 'FFdata',
                        and the input variable for temporary directories to 'tempd'. This might break old code.
Quitting from lines 37-39 (FFD-xts-how-to.Rmd) 
Error: processing vignette 'FFD-xts-how-to.Rmd' failed with diagnostics:
Timeout was reached: [mba.tuck.dartmouth.edu] Resolving timed out after 10000 milliseconds
--- failed re-building 'FFD-xts-how-to.Rmd'

SUMMARY: processing the following files failed:
  'FFD-tibble-how-to.Rmd' 'FFD-xts-how-to.Rmd'

Error: Vignette re-building failed.
Execution halted