Running examples in 'XML-Ex.R' failed
The error most likely occurred in:

> ### Name: getHTMLLinks
> ### Title: Get links or names of external files in HTML document
> ### Aliases: getHTMLLinks getHTMLExternalFiles
> ### Keywords: IO programming
> 
> ### ** Examples
> 
>   getHTMLLinks("http://www.omegahat.net")
  [1] "http://omegahat.wordpress.com/"                                                            
  [2] "contents.html"                                                                             
  [3] "cranRepository.html"                                                                       
  [4] "Papers/index.html"                                                                         
  [5] "http://www.omegahat.net/R/src/contrib"                                                     
  [6] "RFirefox"                                                                                  
  [7] "RKML"                                                                                      
  [8] "RKML/JSM2011/README.html"                                                                  
  [9] "http://www.amstat.org/meetings/jsm/2011/onlineprogram/ActivityDetails.cfm?SessionID=206267"
 [10] "RGoogleStorage"                                                                            
 [11] "REuPathDB"                                                                                 
 [12] "WADL"                                                                                      
 [13] "RExcelXML"                                                                                 
 [14] "RGoogleDocs"                                                                               
 [15] "REuPathDB"                                                                                 
 [16] "WADL"                                                                                      
 [17] "SpiderMonkey"                                                                              
 [18] "ROpenOffice"                                                                               
 [19] "GeoIP"                                                                                     
 [20] "RGCCTUFFI"                                                                                 
 [21] "RAutoGenRunTime"                                                                           
 [22] "Rffi"                                                                                      
 [23] "RGCCTranslationUnit"                                                                       
 [24] "XMLRPC"                                                                                    
 [25] "RCurl"                                                                                     
 [26] "RKML/GoogleEarth"                                                                          
 [27] "RWordpress"                                                                                
 [28] "XMLRPC"                                                                                    
 [29] "RKMLDevice"                                                                                
 [30] "RKML"                                                                                      
 [31] "RHTMLForms"                                                                                
 [32] "RFreetype"                                                                                 
 [33] "RGraphicsDevice"                                                                           
 [34] "RGoogleTrends"                                                                             
 [35] "RTidyHTML"                                                                                 
 [36] "RNYTimes"                                                                                  
 [37] "RGoogleDocs"                                                                               
 [38] "Zillow"                                                                                    
 [39] "RAmazonS3"                                                                                 
 [40] "RAmazonDBREST"                                                                             
 [41] "Rflickr"                                                                                   
 [42] "RNYTimes"                                                                                  
 [43] "http://cran.r-project.org/web/packages/twitteR/index.html"                                 
 [44] "http://cran.r-project.org/web/packages/RLastFM/index.html"                                 
 [45] "RCurl"                                                                                     
 [46] "XML"                                                                                       
 [47] "RJSONIO"                                                                                   
 [48] "http://cran.r-project.org/web/packages/rjson/index.html"                                   
 [49] "RAmazonDBREST"                                                                             
 [50] "RDocbook"                                                                                  
 [51] "XMLRPC"                                                                                    
 [52] "RExcelXML"                                                                                 
 [53] "RUbigraph"                                                                                 
 [54] "RKML"                                                                                      
 [55] "R2GoogleMaps"                                                                              
 [56] "RJavaScript"                                                                               
 [57] "RAmazonS3"                                                                                 
 [58] "RRuby"                                                                                     
 [59] "Rcrypt"                                                                                    
 [60] "RGraphicsDevice"                                                                           
 [61] "FlashMXML"                                                                                 
 [62] "XMLSchema"                                                                                 
 [63] "SSOAP"                                                                                     
 [64] "http://www.omegahat.net/RSXML"                                                             
 [65] "http://www.omegahat.net/RCurl"                                                             
 [66] "Rcompression/index.html"                                                                   
 [67] "Sxslt/index.html"                                                                          
 [68] "http://www.omegahat.net/RSJava"                                                            
 [69] "http://www.omegahat.net/Rexif"                                                             
 [70] "http://www.omegahat.net/CGIwithR"                                                          
 [71] "http://www.omegahat.net/Aspell"                                                            
 [72] "http://www.omegahat.net/RDCOMEvents"                                                       
 [73] "http://www.omegahat.net/Combinations"                                                      
 [74] "http://www.omegahat.net/RMatlab"                                                           
 [75] "http://www.omegahat.net/RCurl"                                                             
 [76] "http://www.omegahat.net/SSOAP"                                                             
 [77] "http://www.omegahat.net/Rstem"                                                             
 [78] "http://snowball.tartarus.org"                                                              
 [79] "http://www.omegahat.net/IDocs"                                                             
 [80] "RGtkViewers"                                                                               
 [81] "http://www.omegahat.net/OmegahatXSL"                                                       
 [82] "http://www.omegahat.net/SASXML"                                                            
 [83] "http://www.omegahat.net/RDCOMServer"                                                       
 [84] "http://www.omegahat.net/RDCOMClient"                                                       
 [85] "http://www.omegahat.net/RGnomePrint"                                                       
 [86] "http://www.omegahat.net/GccTranslationUnit"                                                
 [87] "http://www.omegahat.net/SWinTypeLibs"                                                      
 [88] "http://www.omegahat.net/SWinRegistry"                                                      
 [89] "RGtkExtra/index.html"                                                                      
 [90] "RGdkPixbuf/index.html"                                                                     
 [91] "RGtkGlade/index.html"                                                                      
 [92] "REventLoop/index.html"                                                                     
 [93] "RGtkBindingGenerator/index.html"                                                           
 [94] "RSXML/index.html"                                                                          
 [95] "RGtk/index.html"                                                                           
 [96] "RXLisp/index.html"                                                                         
 [97] "RObjectTables/index.html"                                                                  
 [98] "RGtkViewers/index.html"                                                                    
 [99] "RSMethods/index.html"                                                                      
[100] "RSPython/index.html"                                                                       
[101] "RSPerl/index.html"                                                                         
[102] "RGnumeric/index.html"                                                                      
[103] "SXalan"                                                                                    
[104] "SNetscape"                                                                                 
[105] "download/R/packages"                                                                       
[106] "License.html"                                                                              
[107] "Name.html"                                                                                 
[108] "http://www.omegahat.net/mailman/listinfo"                                                  
[109] "download/index.html"                                                                       
[110] "philosophy.html"                                                                           
[111] "http://math.nist.gov/javanumerics/jama/"                                                   
[112] "http://nicewww.cern.ch/~hoschek/colt/index.htm"                                            
[113] "http://www.w3.org/XML"                                                                     
[114] "http://www.javasoft.com/products/jfc/tsc/index.html"                                       
[115] "License.html"                                                                              
[116] "http://www.omegahat.net/mailman/listinfo/"                                                 
[117] "http://www.stat.wisc.edu/~bates/"                                                          
[118] "http://cm.bell-labs.com/stat/jmc/"                                                         
[119] "http://www.public.iastate.edu/~dicook"                                                     
[120] "http://www.biostat.ku.dk/~pd"                                                              
[121] "http://www.stat.auckland.ac.nz/rgentlem/rgentlem.html"                                     
[122] "http://www.ci.tuwien.ac.at/~hornik/"                                                       
[123] "http://www.stat.auckland.ac.nz/PEOPLE/ihaka/rihaka.html"                                   
[124] "http://www.ci.tuwien.ac.at/~leisch/"                                                       
[125] "http://www.biostat.washington.edu/~thomas/"                                                
[126] "http://stat.ethz.ch/~maechler/"                                                            
[127] "http://sirio.stat.unipd.it/"                                                               
[128] "http://www.stat.auckland.ac.nz/PEOPLE/paul/paul.shtml"                                     
[129] "http://www-stat.stanford.edu/~naras/"                                                      
[130] "http://www.stats.ox.ac.uk/~ripley/"                                                        
[131] "http://www.statlab.uni-heidelberg.de/people/sawitzki/"                                     
[132] "http://www.stat.ucdavis.edu/~duncan/"                                                      
[133] "http://stat.umn.edu/~luke/"                                                                
[134] "http://www.cmis.csiro.au/bill.venables/"                                                   
[135] "http://www.omegahat.net/mailman/listinfo/"                                                 
[136] "mailto:omega-devel@omegahat.net"                                                           
[137] "contrib/RS-DBI/index.html"                                                                 
[138] "contrib/index.html"                                                                        
> 
>   getHTMLLinks("http://www.omegahat.net/RSXML")
 [1] "../RCurl"                            "XML_3.98-1.tar.gz"                  
 [3] "MemoryManagement.html"               "MemoryManagement.pdf"               
 [5] "shortIntro.html"                     "shortIntro.pdf"                     
 [7] "gettingStarted.html"                 "gettingStarted.pdf"                 
 [9] "Overview.html"                       "manual.pdf"                         
[11] "Tour.pdf"                            "description.pdf"                    
[13] "WritingXML.html"                     "FAQ.html"                           
[15] "Changes"                             "keyValueDB.R"                       
[17] "solrDocs.R"                          "http://www.stat.ucdavis.edu/~duncan"
[19] "mailto:duncan@wald.ucdavis.edu"     
> 
>   unique(getHTMLExternalFiles("http://www.omegahat.net"))
Error: failed to load external entity "http://www.omegahat.net"
Execution halted