ERROR

DEBUG: TypeError: Cannot read property 'value' of undefined
    at _asyncMap (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:185:23)
    at async.forEachSeries.iterate (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:108:13)
    at async.forEachSeries.iterate (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:119:25)
    at _asyncMap (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:187:17)
    at async.series.results (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:491:34)
    at async.forEach (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:94:25)
    at bestLapSearch (/home/pitbi/Projects/RaceLive/lib/rfactor_xml_parser.js:188:19)
    at async.forEach (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:86:13)
    at Array.forEach (native)
    at _forEach (/home/pitbi/Projects/RaceLive/node_modules/async/lib/async.js:26:24)

DEBUG: Program node server.js exited with code 1

DEBUG: Starting child process with 'node server.js'

xml_parser.js

RFactorXmlParser.prototype._loadDriveSession = function _loadDriveSession(callback) {
  var self        = this;
  var drivers     = self.xml.find("//Driver");
  var dateText    = self.xml.get("/rFactorXML/RaceResults/TimeString").text();
  var dateMatches = /^(\d{4})\/(\d{2})\/(\d{2}) (\d\d):(\d\d):(\d\d)/.exec(dateText);
  var date        = new Date(dateMatches[1], dateMatches[2], dateMatches[3], dateMatches[4], dateMatches[5], dateMatches[6]);  
    
  Qualification.findOne({date: date}).exec(function (err, existingQualification) {
    if (err)
      return callback(err);
        
    if(!existingQualification) {
      var qualification = new Qualification ({date: date, track: self.track.id, mod: self.mod.id});
      drivers.forEach(function (driver) {
        var driverName     = driver.get("Name").text();
        var driverBestLap  = self._parseDriveTime(driver.get("BestLapTime").text());
        var driverCar      = driver.get("CarType").text();
        var driverPosition = driver.get("Position").text();
        var laps = driver.find("Lap");
        Driver.findOne({gameName : driverName}).exec(function (err, driverFound) {
          if (err)
            return callback(err);
        

          if (driverFound) {
            var entry = {
              driver  : driverFound.id,
              bestLap : driverBestLap,
              car     : driverCar,
              position: driverPosition,
              laps    : []
            };
            
            async.forEach(laps, lapsSearch, callback);
            qualification.entries.push(entry);
            
            function lapsSearch(lap, callback) {
              var lapTime           = self._parseDriveTime(lap.text());
              var lapAttribute      = { lapTime: lapTime };
              console.log("Prout");
                async.forEach(lap.attrs(), lapAttributeSave, callback);
              entry.laps.push(lapAttribute);
              callback();
            }
            
            function lapAttributeSave(lap, callback) {
              var name  = lap.name();
              var value = lap.value();
              console.log("VAL", value, name);
              lap[name] = value;
              callback;
            }

            
            
            var driverBestLaps = driverFound.bestLaps;
            var driverBestLapAttributes = {track: self.track.id, mod: self.mod.id, bestLap: driverBestLap, qualification: qualification.id};
            console.log("DBBDBDBDB",driverBestLapAttributes);
            if (driverBestLaps[0]) {
              console.log
              async.forEach(driverBestLaps, bestLapSearch, callback)
            } else {
              console.log("Add whitout preBestLap");
              driverFound.bestLaps.push(driverBestLapAttributes);
            } 
            
            function bestLapSearch(value, callback) {
              console.log("");
              if (value) {
                if (value.track != driverBestLapAttributes.track && value.mod != driverBestLapAttributes.mod) {
                  driverFound.bestLaps.push(driverBestLapAttributes);
                  console.log("2");
                  callback();
                } else if (value.track === driverBestLapAttributes.track && value.mod === driverBestLapAttributes.mod && driverBestLapAttributes.bestLap > value.bestLap) {             
                  var index = driverFound.bestLaps.indexOf(driverBestLapAttributes.bestLap);                
                  driverFound.bestLaps[index] = driverBestLapAttributes;
                  console.log("3");
                  callback();
                } else {
                  console.log("4");
                  callback();
                }
              } else {
                callback();
              }
            };
            

            qualification.save(function (err) { 
              if (err) {
                  return callback(err);
              } else {
                driverFound.save(function (err) {
                  if (err)
                   return callback(err);
                 console.log("SAVE DRIVER");                 
                });
                return callback(null, "Qualification Added");
              }
            });
          }
        });
      });
    } else {
      return callback(null, "Existing Qualification");
    }
  });
}