Error(s) in re-building vignettes:
--- re-building ‘authentication.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘authentication.Rmd’

--- re-building ‘getting-started.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘getting-started.Rmd’

--- re-building ‘placing-orders.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘placing-orders.Rmd’

--- re-building ‘trade-data.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.

Attaching package: 'dplyr'

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    matches

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Loading required package: lubridate

Attaching package: 'lubridate'

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

Attaching package: 'zoo'

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    as.Date, as.Date.numeric


Attaching package: 'xts'

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Attaching package: 'PerformanceAnalytics'

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    legend

Loading required package: quantmod
Loading required package: TTR
══ 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 </>
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Quitting from lines 137-146 (trade-data.Rmd) 
Error: processing vignette 'trade-data.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘trade-data.Rmd’

SUMMARY: processing the following file failed:
  ‘trade-data.Rmd’

Error: Vignette re-building failed.
Execution halted