ICSharpCode zipfile creation error!

Question

The following code works on my machine but not in server:

using (ZipFile zipFile = ZipFile.Create(outPath))
{       
    if (!includeFolders)
    {
        zipFile.NameTransform = 
            new ZipNameTransform(Path.GetDirectoryName(fileNames[0]));
    }

    foreach (string Fil in fileNames)
    {
        zipFile.BeginUpdate();
        zipFile.Add(Fil.ToLower());
        zipFile.CommitUpdate();
    }
}

It creates an empty zip file and throws this exception:

Cannot access a disposed object. Object name: 'ZipFile'.

anyone else encountered this error? is there an alternative way or library to zip files without folders?