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Questions tagged [epubcheck]

EpubCheck is a tool to validate EPUB files.

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Expected ACC_001 (missing alt attribute) not being generated

I am using version 5.1.0, and I am using the --usage tag. I am intentionally taking out the alt attributes from tags and expecting to get ACC_001 errors. But I am not having the errors returned. I ...
0 votes
2 answers

EpubCheck in Calibre gives errors with epub:type and aside

I get these two errors: ERROR(RSC-005): Error while parsing file 'attribute "epub:type" not allowed here; ERROR(RSC-005): Error while parsing file 'element "aside" not allowed anywhere; How can I ...
16 votes
6 answers

epubcheck error: mimetype entry missing or not the first in archive

I have an ePub that returns "mimetype entry missing or not the first in archive" error in epubcheck, even though the mimetype file is correctly placed. How to fix that?
1 vote
1 answer

Why does EPUBCheck report warnings and errors for ISO8601 date-time string?

While working on a PHP script that builds EPUB 3.0.1 content from external data, I encountered a situation where EPUBCheck complains about a valid ISO8601 date-time string in two places in the ...
0 votes
2 answers

CSS error in EPUB

Epubcheck reports an error for a paragraph like: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ""> <html xmlns="
2 votes
1 answer

What tag use is expected in an ePub toc.xhtml?

I asked a similar question at What do I need my (ePub) toc.ncx to have?, but thought to create a different question about what to do for a toc.xhtml file. The error I am getting when I try to ...
3 votes
0 answers

What do I need my (ePub) toc.ncx to have?

I am trying to figure out an appropriate toc.ncx that EpubCheck will recognize as correct. Right now I have: <?xml version="1.0" encoding="utf-8"?> <ncx version="2005-1" xmlns="http://www....
1 vote
1 answer

ePub validator is giving me errors. How can I address these reported errors?

I am working a "Christmas tree packet" version of a kind of (version 3.0) ePub I am working on, and I would like help understanding the results. This ePub includes images, and is available from https:/...
3 votes
2 answers

The mimetype file has an extra field of length n. The use of the extra field feature of the ZIP format is not permitted for the mimetype file

I am using the C# library DotNetZip (Ionic.Zip and Ionic.Zlib) to generate an ebook from a directory. Directory looks like this: BookName | |___content/ | images/ | css/ | (html ...
8 votes
3 answers

How to run EpubCheck on Windows?

How to run EpubCheck on Windows and verify ePub erros without uploading to
1 vote
1 answer

How can we validate an ePub3 file in Windows 8 system [duplicate]

We have validate an ePub files in the epubcheck-3.0.1 version in windows 8.1 system, and we received below error message in the epub files. could you please help for us? ERROR: 9088098774672.epub: ...
6 votes
1 answer

Can an ePub 2.0 contain multiple .opf files?

I've received an ePub with the following structure: Abstract Container: META-INF/ container.xml varience.txt OEBPS/ content.opf Great Expectations.opf cover.html chapters/ ...