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epubcheck Error
Hi all,
I am trying to publish my first book. I wrote it in HTML and converted it to epub using Calibre. On the Google Play Store, I received the following error on about half of my splits and I have no idea how to address them:
Error while parsing file: attribute "class" not allowed here; expected attribute "dir", "lang", "version" or "xml:lang"
Any thoughts would be greatly appreciated.
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