Incomplete epub export: documents skipped due to errors

[Tetra5DC1]

When trying to export an epub file, I get this message: 

Documents : 37 skipped. (Documents not found or received error during export.)

I have a number of documents added to a  new "book." When exporting the ebook, it only exports select documents, not all the documents I added. I formatted these documents using Indesign 2020. However, I just upgraded and am trying to export them with Indesign 2021. Any insight is appreciated. Thanks.  

[TobiasWerks]

I am having the same issue and it's driving me crazy. It doesn't always stop on the same chapter. Sometimes 10 are skipped, sometimes 13. I thought maybe it was memory issues, but I'm fine. Any other insights here?

[Derek Cross]

Is this a Reflowable ePub or a FXL ePub?

Did you use the InDesign Book feature to create the document Tetra?

[TobiasWerks]

It was an existing print book. Yes, used InDesign Book to create. and it is a FXL ePub doc.

[Derek Cross]

How many pages and did you modify the print version for use for the ePub version?

[TobiasWerks]

362 pages. I modified it somewhat. I actually got it to export once. And then client came back with one more revision and now I can't get it to work again.

[Derek Cross]

That's a long document – is it text heavy?

[TobiasWerks]

It's a mix. Mostly text with some photos interspersed

[Derek Cross]

It might be worth buying a month's worth of the epub validator Flightdeck – it's an invaluable resource: https://ebookflightdeck.com

[James Gifford—NitroPress]

I'm not sure a validator is of any use until an EPUB is generated. 🙂

I would try exporting small groups of chapter documents to see if it's the scale of the export, or individually faulty component docs.

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