I recently reinstalled Sigil, and discovered in the process that there's now that EPUB2 to EPUB3 converter plugin -- woohoo! I had
so much trouble before trying to convert one of my ebooks to EPUB3 (simply so that I could add in one little audio file) that I finally gave up on it. :/
That plugin is great, though! I still ended up with a ton of errors, but I just finished going through them all one-by-one and correcting them all. Now I've finally got my ebook validating with NO errors -- although this is
before I add in that little audio file, mind you -- but I still have a 289 "warnings," virtually all of which seem to be this one:
Quote:
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SVG hyperlinks should have a human-readable title (using the 'title' child element or the 'xlink:title' attribute)
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I have absolutely NO idea what this means -- even after searching all over the 'net for an answer. It would seem that all the errors arise wherever I have plain old HTML links (i.e. <a href="whatever">), but I'm clueless how to fix this.
Or should I just simply ignore these "warnings"?
So that's my first question. My second question arises from when I add in the audio file, which is basically just this line of code...
Code:
<audio controls="controls" src="../Audio/tombowling.mp3" style="text-align:center; width:100%;"><i>[Sorry, your device doesn’t support audio]</i></audio>
...but just that then gives me these six errors when I validate...
Quote:
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 15, col 32):
Error while parsing file 'attribute "opf:role" not allowed here; expected attribute "dir", "id" or "xml:lang"'.
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 27, col 34):
Error while parsing file 'attribute "opf:scheme" not allowed here; expected attribute "id"'.
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 28, col 34):
Error while parsing file 'attribute "opf:scheme" not allowed here; expected attribute "id"'.
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 10, col 47):
Error while parsing file 'assertion failed: @refines missing target id: 't1''.
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 11, col 69):
Error while parsing file 'assertion failed: @refines missing target id: 'create1''.
ERROR (RSC-005) at "Walden_and_Beyond_epub3.epub/OEBPS/content.opf" (line 12, col 49):
Error while parsing file 'assertion failed: @refines missing target id: 'create1''.
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I haven't the slightest idea what any of that means -- at least, I know what the content.opf file is, but what is it that I'm supposed to do to fix this?
Thanks so much in advance (and as always -- I'm
so grateful for these forums!). It would be so cool if I can finally get this converted!
