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 3248 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5546 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5547 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5548 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5549 appears to contain an embedded nul
Warning in readLines(connection) :
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Warning in readLines(connection) :
  line 5551 appears to contain an embedded nul
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  line 5552 appears to contain an embedded nul
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  line 5553 appears to contain an embedded nul
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  line 5554 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5555 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5556 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5557 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5558 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5559 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5560 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5561 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5562 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5563 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5564 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5565 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5566 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5567 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5568 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5569 appears to contain an embedded nul
Warning in readLines(connection) :
  line 6480 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9836 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9837 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9838 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9839 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9840 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9841 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9842 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9843 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9844 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9845 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9846 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9847 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9848 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9849 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9850 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9851 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9852 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9853 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9854 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9859 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9860 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9861 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9862 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9863 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9864 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9865 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9866 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9867 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9868 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9869 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9870 appears to contain an embedded nul
Warning in grep(pattern = "^//", x = results) :
  input string 3248 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 6480 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 9843 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 9845 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 9848 is invalid in this locale
Error in gsub(x = suffixes, pattern = "*.", replacement = "", fixed = TRUE) : 
  input string 2901 is invalid in this locale
Calls: suffix_extract -> suffix_load -> gsub
Execution halted