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Old 09-13-2024, 08:02 AM   #1
The Outsider
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Epub validation and errors
I'm relatively new to epub 2 validation (I thought if Sigil didn't have any problems with it, it was good to go ...) and have an error in a "content.opf" file I can't figure out.

Should I try copying everything (except the .opf file) to a new epub file, try something different (the error is "ERROR OPF-074 /OEBPS/content.opf
(line 22, col 86) Package resource "OEBPS/Images/AGADCover2.png" is declared in several manifest item."), or ask the webmaster on the site where I post for ideas?

He's already been very helpful with this issue, and I don't want to overburden him.

What do you think?

The Outsider
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Old 09-13-2024, 08:52 AM   #2
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Quote:
Originally Posted by The Outsider View Post
I'm relatively new to epub 2 validation (I thought if Sigil didn't have any problems with it, it was good to go ...) and have an error in a "content.opf" file I can't figure out.

Should I try copying everything (except the .opf file) to a new epub file, try something different (the error is "ERROR OPF-074 /OEBPS/content.opf
(line 22, col 86) Package resource "OEBPS/Images/AGADCover2.png" is declared in several manifest item."), or ask the webmaster on the site where I post for ideas?

He's already been very helpful with this issue, and I don't want to overburden him.

What do you think?

The Outsider
It sounds like you have that file listed more then once in the manifest in the OPF. Have a look at the OPF and see if it's listed more than once. If it is, delete the duplicated lines.
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Old 09-13-2024, 09:07 AM   #3
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If in doubt which ones to delete, just remove all the references, remove the image, and then add the image again using Sigil’s ‘Add existing file’ function. It will put the correct opf entry where it should go.
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Old 09-13-2024, 09:40 AM   #4
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Thanks. Both of these options together fix the validation problems ...
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Old 09-13-2024, 10:50 AM   #5
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You might want to install the EpubCheck plugin for Sigil. It can catch these kinds of things before submission.

https://www.mobileread.com/forums/sh...d.php?t=248186
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