At this time, we're investigating the problem and looking for a solution.
If you've encountered this issue while converting your file, we suggest attempting to create and upload an EPUB directly to our system.
While there are a number of EPUB conversion options, Calibre (Download Here) has shown the best results for creating an EPUB for the Lulu system. Please review their extensive Help resources (Found Here) to create an EPUB 2 that our system can validate.
We've also created this Forum Thread. Post questions here and we'll do our best to respond and assist.
What is Print on Demand (POD)?
Print-on-Demand (POD) is a method of producing books or other media using a digital file. The books are produced only at the time of purchase. Rather than printing a multitude of books in a single run, Print-on-Demand produces books in response to an order. Working from PDF files and printing digitally, POD slashes the upfront cost to print and enables authors to publish without maintaining a stock of books on hand.
Traditional publishers print thousands of copies at once. Although large print runs costs less per copy, the initial cost is much higher. By allowing anyone to access a POD network, any book can be published and made available with no upfront cost for the author.
Additionally, using Print-on-Demand ends the need to for warehouse storage of pre-printed copies, completely eliminates waste from unsold books, and allows printers to be sourced as close to the recipient as possible to minimize transportation.