Package check result: ERROR

Check: examples, Result: ERROR
  Running examples in ‘PerformanceAnalytics-Ex.R’ failed
  The error most likely occurred in:
  
  > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
  > ### Name: Return.locScaleRob
  > ### Title: Robust Filter for Time Series Returns
  > ### Aliases: Return.locScaleRob
  > 
  > ### ** Examples
  > 
  > # Loading data from PerformanceAnalytics
  > data(edhec, package = "PerformanceAnalytics")
  > class(edhec)
  [1] "xts" "zoo"
  > # Changing the data colnames
  > names(edhec) = c("CA", "CTA", "DIS", "EM", "EMN",
  +                  "ED", "FIA", "GM", "LS", "MA",
  +                  "RV", "SS", "FOF")
  > # Cleaning the returns time series for manager data
  > outRob <- Return.locScaleRob(edhec$CA)
  Error: Package "RobStatTM" needed for this function to work. Please install it.
  Execution halted

Check: re-building of vignette outputs, Result: ERROR
  Error(s) in re-building vignettes:
    ...
  --- re-building ‘PA_StandardErrors.pdf.asis’ using asis
  --- finished re-building ‘PA_StandardErrors.pdf.asis’
  
  --- re-building ‘textplotPresentation-CRUG-2011.pdf.asis’ using asis
  --- finished re-building ‘textplotPresentation-CRUG-2011.pdf.asis’
  
  --- re-building ‘EstimationComoments.Rnw’ using Sweave
  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
  
  --- finished re-building ‘EstimationComoments.Rnw’
  
  --- re-building ‘PA-charts.Rnw’ using Sweave
  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
  
  --- finished re-building ‘PA-charts.Rnw’
  
  --- re-building ‘PerformanceAnalyticsChartsPresentation-Meielisalp-2007.Rnw’ using Sweave
  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
  
  
  Error: processing vignette 'PerformanceAnalyticsChartsPresentation-Meielisalp-2007.Rnw' failed with diagnostics:
   chunk 14 (label = tableCAPM) 
  Error in .coefficients(xRa[, n[1]], xRb[, n[2]], subset, method = method,  : 
    "package:RobStatTM" %in% search() || requireNamespace("RobStatTM",  .... is not TRUE
  
  --- failed re-building ‘PerformanceAnalyticsChartsPresentation-Meielisalp-2007.Rnw’
  
  --- re-building ‘PerformanceAnalyticsPresentation-UseR-2007.Rnw’ using Sweave
  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
  
  --- finished re-building ‘PerformanceAnalyticsPresentation-UseR-2007.Rnw’
  
  --- re-building ‘portfolio_returns.Rnw’ using Sweave
  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 objects are masked _by_ ‘.GlobalEnv’:
  
      prices, weights
  
  The following object is masked from ‘package:graphics’:
  
      legend
  
  --- finished re-building ‘portfolio_returns.Rnw’
  
  SUMMARY: processing the following file failed:
    ‘PerformanceAnalyticsChartsPresentation-Meielisalp-2007.Rnw’
  
  Error: Vignette re-building failed.
  Execution halted