Error(s) in re-building vignettes:
  ...
--- re-building 'TK00_Time_Series_Coercion.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.
== Need to Learn tidyquant? ===============================================
Business Science offers a 1-hour course - Learning Lab #9: Performance Analysis & Portfolio Optimization with tidyquant!
</> Learn more at: https://university.business-science.io/p/learning-labs-pro </>
Quitting from lines 57-64 (TK00_Time_Series_Coercion.Rmd) 
Error: processing vignette 'TK00_Time_Series_Coercion.Rmd' failed with diagnostics:
could not find function "rename"
--- failed re-building 'TK00_Time_Series_Coercion.Rmd'

--- re-building 'TK01_Working_With_Time_Series_Index.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.
== Need to Learn tidyquant? ===============================================
Business Science offers a 1-hour course - Learning Lab #9: Performance Analysis & Portfolio Optimization with tidyquant!
</> Learn more at: https://university.business-science.io/p/learning-labs-pro </>
Quitting from lines 51-53 (TK01_Working_With_Time_Series_Index.Rmd) 
Error: processing vignette 'TK01_Working_With_Time_Series_Index.Rmd' failed with diagnostics:
object 'symbol' not found
--- failed re-building 'TK01_Working_With_Time_Series_Index.Rmd'

--- re-building 'TK02_Making_A_Future_Time_Series_Index.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.
== Need to Learn tidyquant? ===============================================
Business Science offers a 1-hour course - Learning Lab #9: Performance Analysis & Portfolio Optimization with tidyquant!
</> Learn more at: https://university.business-science.io/p/learning-labs-pro </>
Quitting from lines 52-61 (TK02_Making_A_Future_Time_Series_Index.Rmd) 
Error: processing vignette 'TK02_Making_A_Future_Time_Series_Index.Rmd' failed with diagnostics:
object 'wday.lbl' not found
--- failed re-building 'TK02_Making_A_Future_Time_Series_Index.Rmd'

--- re-building 'TK03_Forecasting_Using_Time_Series_Signature.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.
== Need to Learn tidyquant? ===============================================
Business Science offers a 1-hour course - Learning Lab #9: Performance Analysis & Portfolio Optimization with tidyquant!
</> Learn more at: https://university.business-science.io/p/learning-labs-pro </>
Quitting from lines 53-60 (TK03_Forecasting_Using_Time_Series_Signature.Rmd) 
Error: processing vignette 'TK03_Forecasting_Using_Time_Series_Signature.Rmd' failed with diagnostics:
could not find function "read_csv"
--- failed re-building 'TK03_Forecasting_Using_Time_Series_Signature.Rmd'

SUMMARY: processing the following files failed:
  'TK00_Time_Series_Coercion.Rmd'
  'TK01_Working_With_Time_Series_Index.Rmd'
  'TK02_Making_A_Future_Time_Series_Index.Rmd'
  'TK03_Forecasting_Using_Time_Series_Signature.Rmd'

Error: Vignette re-building failed.
Execution halted