We're aware of an issue with converting some DOC, DOCX, ODT, and RTF files to EPUB through our Ebook Wizard.

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.

help with epub errors...



I've been trying to upload an epub file.

I've received error messages, most I've figured out and fixed... the list below is baffeling.


can anyone here help?


WARNING: [email protected]:uid content 'fd69b70d-d08b-137f-471e-2e340d37aa6e' should conform to unique-identifier in content.opf: 'urn:uuid:fd69b70d-d08b-137f-471e-2e340d37aa6e' in OEBPS/toc.ncx

ERROR: date value '' is not valid as per http://www.w3.org/TR/NOTE-datetime: zero-length string in OEBPS/content.opf on line 2
ERROR: element "navMap" incomplete; missing required element "navPoint" in OEBPS/toc.ncx on line 3
ERROR: Publisher value is missing in OEBPS/content.opf
ERROR: Unable to locate a valid publication date. A date with the event attribute publication (opf:event=publication) is required in OEBPS/content.opf
ERROR: Unable to locate a valid creator. A creator with the author role (role=aut) and the file-as attribute is required in OEBPS/content.opf


  • Greetings.


    Why not upload a Word manuscript to Lulu and edit the epub they provide? It'll save you lots of time.


    Regarding the creator, date, and publisher, you can add those in the metadata and update your toc.



     A citizen of the world.

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