Tsung error

gistfile1.erl

Config Error, aborting ! {{case_clause,{error,enoent}},
                          [{xmerl_scan,fetch_DTD,2,
                               [{file,"xmerl_scan.erl"},{line,1283}]},
                           {xmerl_scan,scan_doctype3,3,
                               [{file,"xmerl_scan.erl"},{line,1264}]},
                           {xmerl_scan,scan_prolog,4,
                               [{file,"xmerl_scan.erl"},{line,722}]},
                           {xmerl_scan,scan_document,2,
                               [{file,"xmerl_scan.erl"},{line,563}]},
                           {xmerl_scan,file,2,
                               [{file,"xmerl_scan.erl"},{line,249}]},
                           {ts_config,read,2,
                               [{file,"src/tsung_controller/ts_config.erl"},
                                {line,68}]},
                           {ts_config_server,handle_call,3,
                               [{file,
                                    "src/tsung_controller/ts_config_server.erl"},
                                {line,198}]},
                           {gen_server,handle_msg,5,
                               [{file,"gen_server.erl"},{line,578}]}]}
 %