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 5542 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5543 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5544 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5545 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) :
  line 5550 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5551 appears to contain an embedded nul
Warning in readLines(connection) :
  line 5552 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9119 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9120 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9121 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9122 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9123 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9124 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9125 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9126 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9127 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9128 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9129 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9130 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9131 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9133 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9134 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9135 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9136 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9137 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9139 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9140 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9141 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9142 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9143 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9144 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9145 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9146 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9147 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9148 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9149 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9150 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9151 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9152 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9153 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9154 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9155 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9156 appears to contain an embedded nul
Warning in readLines(connection) :
  line 9157 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 5541 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 5542 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 5543 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 5549 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