Quote:
Originally Posted by feraudyh
The TOC is generated by Sigil.
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1. Did you check your book with the
IDPF online validator?
If your book passes epubcheck:
2. Did you generate a TOC with 3 or more nested levels?
For example:
Code:
Chapter 1
Chapter 1.1.
Chapter 1.1.1.
Chapter 1.1.1.1.
If so, you might want to flatten your TOC, because Kindle books support at most 2 levels.
Reducing the TOC depth will usually make this error go away.
Since this is more of a Kindle question, this thread should be moved to the Kindle Formats sub forum.