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())
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  line 6585 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6586 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6587 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6588 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6589 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6590 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6591 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6592 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6593 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6594 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6595 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6596 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6597 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6598 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6599 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6600 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6601 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6602 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6603 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6604 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6605 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6606 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6607 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6608 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6609 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6610 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 3619 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 3628 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4032 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4049 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