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 2348 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4280 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8645 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8646 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8647 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8648 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8649 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8650 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8651 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8652 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8653 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8654 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8655 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8656 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8657 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8658 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8659 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8660 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8661 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8662 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8663 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8664 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8665 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8666 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8667 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8668 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8669 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8670 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8671 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8672 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8673 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8674 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8675 appears to contain an embedded nul
Warning in grep(pattern = "^//", x = results) :
  input string 2348 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4280 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 8646 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 8647 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 8648 is invalid in this locale
Error in gsub(x = suffixes, pattern = "*.", replacement = "", fixed = TRUE) : 
  input string 2001 is invalid in this locale
Calls: suffix_extract -> suffix_load -> gsub
Execution halted