• using R version 3.4.4 (2018-03-15)
• using platform: x86_64-w64-mingw32 (64-bit)
• using session charset: ISO8859-1
• checking for file 'covmat/DESCRIPTION' ... OK
• checking extension type ... Package
• this is package 'covmat' version '1.0'
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking whether package 'covmat' can be installed ... OK
• checking installed package size ... OK
• checking package directory ... OK
• checking 'build' directory ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking use of S3 registration ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [14s] OK
• checking Rd files ... OK
• checking Rd metadata ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking contents of 'data' directory ... OK
• checking data for non-ASCII characters ... OK
• checking data for ASCII and uncompressed saves ... OK
• checking sizes of PDF files under 'inst/doc' ... OK
• checking installed files from 'inst/doc' ... OK
• checking files in 'vignettes' ... OK
• checking examples ... [5s] OK
• checking for unstated dependencies in vignettes ... OK
• checking package vignettes in 'inst/doc' ... OK
• checking re-building of vignette outputs ... [15s] WARNING
  Error in re-building vignettes:
    ...
  Loading required package: mvtnorm
  Loading required package: RMTstat
  Loading required package: grid
  Loading required package: zoo
  
  Attaching package: 'zoo'
  
  The following objects are masked from 'package:base':
  
      as.Date, as.Date.numeric
  
  Loading required package: fit.models
  Loading required package: foreach
  Loading required package: PerformanceAnalytics
  
  Attaching package: 'PerformanceAnalytics'
  
  The following object is masked from 'package:graphics':
  
      legend
  
  Loading required package: rugarch
  Loading required package: parallel
  
  Attaching package: 'rugarch'
  
  The following object is masked from 'package:stats':
  
      sigma
  
  
  Attaching package: 'rmgarch'
  
  The following objects are masked from 'package:xts':
  
      first, last
  
  Quitting from lines 217-225 (CovarianceEstimation.Rmd)
  Error: processing vignette 'CovarianceEstimation.Rmd' failed with diagnostics:
  all(sapply(args, function(x) is.zoo(x) || !is.plain(x) || (is.plain(x) && .... is not TRUE
  Execution halted
  
• checking PDF version of manual ... OK
• DONE

Status: 1 WARNING