Running examples in ‘urltools-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: suffix_extract
> ### Title: extract the suffix from domain names
> ### Aliases: suffix_extract
> 
> ### ** Examples
> 
> 
> # Using url_parse
> domain_name <- url_parse("http://en.wikipedia.org")$domain
> suffix_extract(domain_name)
              host subdomain    domain suffix
1 en.wikipedia.org        en wikipedia    org
> 
> # Using domain()
> domain_name <- domain("http://en.wikipedia.org")
> suffix_extract(domain_name)
              host subdomain    domain suffix
1 en.wikipedia.org        en wikipedia    org
> 
> #Relying on a fresh version of the suffix dataset
> suffix_extract(domain("http://en.wikipedia.org"), suffix_refresh())
Warning in readLines(connection) :
  line 3286 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5630 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5631 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5632 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5633 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5634 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5635 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5636 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5637 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5638 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5639 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5640 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5641 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6531 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9893 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9894 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9895 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9896 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9897 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9898 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9899 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9900 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9901 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9902 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9905 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9906 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9907 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9908 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9909 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9910 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9911 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9912 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9913 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9914 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9915 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9916 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9917 appears to contain an embedded nul
Warning in grep(pattern = "^//", x = results) :
  input string 3286 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 6531 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 9903 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 9904 is invalid in this locale
Error in gsub(x = suffixes, pattern = "*.", replacement = "", fixed = TRUE) : 
  input string 2939 is invalid in this locale
Calls: suffix_extract -> suffix_load -> gsub
Execution halted