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 4255 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4256 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4257 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4258 appears to contain an embedded nul
Warning in readLines(connection) :
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Warning in readLines(connection) :
  line 4260 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4261 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4262 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4263 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4264 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4265 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4266 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4267 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4268 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4269 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4270 appears to contain an embedded nul
Warning in readLines(connection) :
  line 4271 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8248 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8249 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8250 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8251 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8252 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8253 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8254 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8255 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8256 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8257 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8258 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8259 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8261 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8262 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8263 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8264 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8265 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8266 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8267 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8268 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8269 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8270 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8271 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8276 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8277 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8278 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8279 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8280 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8281 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8282 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8284 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8285 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8288 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8289 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8290 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8291 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8292 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8293 appears to contain an embedded nul
Warning in readLines(connection) :
  line 8294 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 4255 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4265 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4266 is invalid in this locale
Warning in grep(pattern = "^//", x = results) :
  input string 4267 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