Error(s) in re-building vignettes:
--- re-building 'TQ00-introduction-to-tidyquant.Rmd' using rmarkdown
Loading required package: lubridate

Attaching package: 'lubridate'

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

    date, intersect, setdiff, union

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
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ──
✔ ggplot2 3.3.6     ✔ purrr   0.3.4
✔ tibble  3.1.8     ✔ dplyr   1.0.9
✔ tidyr   1.2.0     ✔ stringr 1.4.1
✔ readr   2.1.2     ✔ forcats 0.5.2
── 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 'TQ00-introduction-to-tidyquant.Rmd'

--- re-building 'TQ01-core-functions-in-tidyquant.Rmd' using rmarkdown
Warning in fun_transmute(., OHLC = FALSE, ...) :
  missing values removed from data
Warning: x = 'FB', get = 'stock.prices': Error in getSymbols.yahoo(Symbols = "FB", env = <environment>, verbose = FALSE, : Unable to import "FB".
FB download failed after two attempts. Error message:
HTTP error 404.

Quitting from lines 363-371 (TQ01-core-functions-in-tidyquant.Rmd) 
Error: processing vignette 'TQ01-core-functions-in-tidyquant.Rmd' failed with diagnostics:
data must be a tibble or data.frame object
--- failed re-building 'TQ01-core-functions-in-tidyquant.Rmd'

--- re-building 'TQ02-quant-integrations-in-tidyquant.Rmd' using rmarkdown
Warning: Removed 20 row(s) containing missing values (geom_path).
`geom_smooth()` using formula 'y ~ x'
Warning: Removed 89 row(s) containing missing values (geom_path).
--- finished re-building 'TQ02-quant-integrations-in-tidyquant.Rmd'

--- re-building 'TQ03-scaling-and-modeling-with-tidyquant.Rmd' using rmarkdown
Warning: Problem while computing `data.. = purrr::map(...)`.
ℹ x = 'FB', get = 'stock.prices': Error in getSymbols.yahoo(Symbols = "FB", env
  = <environment>, verbose = FALSE, : Unable to import "FB". FB download failed
  after two attempts. Error message: HTTP error 404.  Removing FB.
Getting holdings for DOW
Getting holdings for DOW
`geom_smooth()` using formula 'y ~ x'
Getting holdings for SP500
Warning: x = 'XYZ', get = 'stock.prices': Error in getSymbols.yahoo(Symbols = "XYZ", env = <environment>, verbose = FALSE, : Unable to import "XYZ".
XYZ download failed after two attempts. Error message:
HTTP error 404.

--- finished re-building 'TQ03-scaling-and-modeling-with-tidyquant.Rmd'

--- re-building 'TQ04-charting-with-tidyquant.Rmd' using rmarkdown
`geom_smooth()` using formula 'y ~ x'
`geom_smooth()` using formula 'y ~ x'
`geom_smooth()` using formula 'y ~ x'
--- finished re-building 'TQ04-charting-with-tidyquant.Rmd'

--- re-building 'TQ05-performance-analysis-with-tidyquant.Rmd' using rmarkdown
Warning: `spread_()` was deprecated in tidyr 1.2.0.
Please use `spread()` instead.
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
Ungrouping data frame groups: symbol
Warning: Problem while computing `nested.col = purrr::map(...)`.
ℹ skewness is close to zero. The classical definition of the coskewness
  statistic is not applicable and one should normalize using the comoment
  without standardization.
ℹ The warning occurred in group 1: portfolio = 1.
Warning: Problem while computing `nested.col = purrr::map(...)`.
ℹ skewness is close to zero. The classical definition of the coskewness
  statistic is not applicable and one should normalize using the comoment
  without standardization.
ℹ The warning occurred in group 2: portfolio = 2.
Warning: Problem while computing `nested.col = purrr::map(...)`.
ℹ skewness is close to zero. The classical definition of the coskewness
  statistic is not applicable and one should normalize using the comoment
  without standardization.
ℹ The warning occurred in group 3: portfolio = 3.
`geom_smooth()` using formula 'y ~ x'
`geom_smooth()` using formula 'y ~ x'
`geom_smooth()` using formula 'y ~ x'
--- finished re-building 'TQ05-performance-analysis-with-tidyquant.Rmd'

SUMMARY: processing the following file failed:
  'TQ01-core-functions-in-tidyquant.Rmd'

Error: Vignette re-building failed.
Execution halted