Error(s) in re-building vignettes:
--- re-building ‘SW00_Introduction_to_sweep.Rmd’ using rmarkdown
Loading required package: lubridate

Attaching package: 'lubridate'

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

    date

Loading required package: PerformanceAnalytics
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

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

    as.Date, as.Date.numeric


Attaching package: 'PerformanceAnalytics'

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

    legend

Loading required package: quantmod
Loading required package: TTR
Version 0.4-0 included new data defaults. See ?getSymbols.
Loading required package: tidyverse
── Attaching packages ────────────────────────────────── tidyverse 1.2.1 ──
✔ ggplot2 3.1.0       ✔ purrr   0.3.0  
✔ tibble  2.0.1       ✔ dplyr   0.8.0.1
✔ tidyr   0.8.3       ✔ stringr 1.4.0  
✔ readr   1.3.1       ✔ forcats 0.4.0  
── Conflicts ───────────────────────────────────── tidyverse_conflicts() ──
✖ lubridate::as.difftime() masks base::as.difftime()
✖ lubridate::date()        masks base::date()
✖ dplyr::filter()          masks stats::filter()
✖ dplyr::first()           masks xts::first()
✖ lubridate::intersect()   masks base::intersect()
✖ dplyr::lag()             masks stats::lag()
✖ dplyr::last()            masks xts::last()
✖ lubridate::setdiff()     masks base::setdiff()
✖ lubridate::union()       masks base::union()
Quitting from lines 68-76 (SW00_Introduction_to_sweep.Rmd) 
Error: processing vignette 'SW00_Introduction_to_sweep.Rmd' failed with diagnostics:
`data` must be a data frame, or other object coercible by `fortify()`, not a logical vector
--- failed re-building ‘SW00_Introduction_to_sweep.Rmd’

--- re-building ‘SW01_Forecasting_Time_Series_Groups.Rmd’ using rmarkdown
Loading required package: lubridate

Attaching package: 'lubridate'

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

    date

Loading required package: PerformanceAnalytics
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

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

    as.Date, as.Date.numeric


Attaching package: 'PerformanceAnalytics'

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

    legend

Loading required package: quantmod
Loading required package: TTR
Version 0.4-0 included new data defaults. See ?getSymbols.
Loading required package: tidyverse
── Attaching packages ────────────────────────────────── tidyverse 1.2.1 ──
✔ ggplot2 3.1.0       ✔ purrr   0.3.0  
✔ tibble  2.0.1       ✔ dplyr   0.8.0.1
✔ tidyr   0.8.3       ✔ stringr 1.4.0  
✔ readr   1.3.1       ✔ forcats 0.4.0  
── Conflicts ───────────────────────────────────── tidyverse_conflicts() ──
✖ lubridate::as.difftime() masks base::as.difftime()
✖ lubridate::date()        masks base::date()
✖ dplyr::filter()          masks stats::filter()
✖ dplyr::first()           masks xts::first()
✖ lubridate::intersect()   masks base::intersect()
✖ dplyr::lag()             masks stats::lag()
✖ dplyr::last()            masks xts::last()
✖ lubridate::setdiff()     masks base::setdiff()
✖ lubridate::union()       masks base::union()
--- finished re-building ‘SW01_Forecasting_Time_Series_Groups.Rmd’

--- re-building ‘SW02_Forecasting_Multiple_Models.Rmd’ using rmarkdown
Loading required package: lubridate

Attaching package: 'lubridate'

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

    date

Loading required package: PerformanceAnalytics
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

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

    as.Date, as.Date.numeric


Attaching package: 'PerformanceAnalytics'

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

    legend

Loading required package: quantmod
Loading required package: TTR
Version 0.4-0 included new data defaults. See ?getSymbols.
Loading required package: tidyverse
── Attaching packages ────────────────────────────────── tidyverse 1.2.1 ──
✔ ggplot2 3.1.0       ✔ purrr   0.3.0  
✔ tibble  2.0.1       ✔ dplyr   0.8.0.1
✔ tidyr   0.8.3       ✔ stringr 1.4.0  
✔ readr   1.3.1       ✔ forcats 0.4.0  
── Conflicts ───────────────────────────────────── tidyverse_conflicts() ──
✖ lubridate::as.difftime() masks base::as.difftime()
✖ lubridate::date()        masks base::date()
✖ dplyr::filter()          masks stats::filter()
✖ dplyr::first()           masks xts::first()
✖ lubridate::intersect()   masks base::intersect()
✖ dplyr::lag()             masks stats::lag()
✖ dplyr::last()            masks xts::last()
✖ lubridate::setdiff()     masks base::setdiff()
✖ lubridate::union()       masks base::union()
Quitting from lines 65-66 (SW02_Forecasting_Multiple_Models.Rmd) 
Error: processing vignette 'SW02_Forecasting_Multiple_Models.Rmd' failed with diagnostics:
$ operator is invalid for atomic vectors
--- failed re-building ‘SW02_Forecasting_Multiple_Models.Rmd’

SUMMARY: processing the following files failed:
  ‘SW00_Introduction_to_sweep.Rmd’
  ‘SW02_Forecasting_Multiple_Models.Rmd’

Error: Vignette re-building failed.
Execution halted