zip to s3 function with recursive flag throwing error.

[barahate90]

Hello There,
var params_zip={
s3FolderName: req.params.sr_id,
s3ZipFileName:req.params.sr_id+'.zip',
recursive:true
};
//console.log("zipper params test: ",params_zip);
zipper.zipToS3File (params_zip
,function(err,result){
//console.log('zipper error: ',err);
//console.log('zipper result: ',result);
if(err){
console.error(err);
callback(true,false);
}
else{
var lastFile = result.zippedFiles[result.zippedFiles.length-1];
if(lastFile){
console.log('last key ', lastFile.Key); // next time start from here
}

                callback(false,true);
            }
    });

Please help me to understand the issue or if any solution is there please provide the same .