Quote:
Originally Posted by kalpesh.spaceo@
Type File Line Position Message
ERROR OPS/content.opf -1 -1 assertion failed: The "id" attribute does not have a unique value
ERROR OPS/content.opf -1 -1 assertion failed: The "id" attribute does not have a unique value
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You're in the wrong forum so expect to be moved.
Where did you get this error? Under what circumstances?
You're really not giving enough information but generally what I see is a malformed epub.
content.opf is a file inside an epub archive.
in it, there are entries such as ...
<item href="Text/chapter01.xhtml"
id="c01" media-type="application/xhtml+xml" />
for any given type, each id must exist and be unique.
this is just speculation on my part. I can't garner enough from the error message to be more specific.