Error(s) in re-building vignettes:
--- re-building 'HCP_analysis.Rmd' using rmarkdown
--- finished re-building 'HCP_analysis.Rmd'

--- re-building 'ML_and_Inference.Rmd' using rmarkdown
Loading required namespace: TDAstats
Loading required namespace: TDA

Quitting from ML_and_Inference.Rmd:1078-1089 [unnamed-chunk-61]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `serverSocket()`:
! creation of server socket failed: port 11844 cannot be opened
---
Backtrace:
    ▆
 1. └─TDApplied::diagram_ksvm(...)
 2.   └─base::lapply(...)
 3.     └─TDApplied (local) FUN(X[[i]], ...)
 4.       └─TDApplied::distance_matrix(...)
 5.         └─parallel::makeCluster(num_workers)
 6.           └─parallel::makePSOCKcluster(names = spec, ...)
 7.             └─base::serverSocket(port = port)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'ML_and_Inference.Rmd' failed with diagnostics:
creation of server socket failed: port 11844 cannot be opened
--- failed re-building 'ML_and_Inference.Rmd'

--- re-building 'Speed.Rmd' using rmarkdown
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  zero-length arrow is of indeterminate angle and so skipped
--- finished re-building 'Speed.Rmd'

--- re-building 'comparing_calcs.Rmd' using rmarkdown
--- finished re-building 'comparing_calcs.Rmd'

--- re-building 'personalized_analyses.Rmd' using rmarkdown
--- finished re-building 'personalized_analyses.Rmd'

SUMMARY: processing the following file failed:
  'ML_and_Inference.Rmd'

Error: Vignette re-building failed.
Execution halted