Error codes
Hello, I am getting the following error codes when trying to upload my epub to Ingram. Does anyone know what any of them mean?
[ERROR]content.opf: 2,133: URL expected instead of calibre:
[ERROR]content.opf: 22,64: Undecleared prefix: calibre
[ERROR]content.opf: 23,54: Undefined property: belongs-to-collection
[ERROR]content.opf: 24,54: Undefined property: collection-type
[ERROR]content.opf: 29,121: Undecleared prefix: calibre
[ERROR]titlepage.xhtml: 10,73: value of attribute "http-equiv" is invalid; must be a string matching the regular expression "([Dd][Ee][Ff][Aa][Uu][Ll][Tt]\-[Ss][Tt][Yy][Ll][Ee])|([Rr][Ee][Ff][Rr][Ee][Ss][Hh])"
[ERROR]titlepage.xhtml: This file should not declare in the OPF the properties: svg calibre:title-page
[ERROR]index.html: 2,106: value of attribute "lang" is invalid; must be an RFC 3066 language identifier
[ERROR]index.html: 2,106: value of attribute "xml:lang" is invalid; must be an RFC 3066 language identifier
[ERROR]index.html: 12,73: value of attribute "http-equiv" is invalid; must be a string matching the regular expression "([Dd][Ee][Ff][Aa][Uu][Ll][Tt]\-[Ss][Tt][Yy][Ll][Ee])|([Rr][Ee][Ff][Rr][Ee][Ss][Hh])"
[ERROR]nav.xhtml: 5,73: value of attribute "http-equiv" is invalid; must be a string matching the regular expression "([Dd][Ee][Ff][Aa][Uu][Ll][Tt]\-[Ss][Tt][Yy][Ll][Ee])|([Rr][Ee][Ff][Rr][Ee][Ss][Hh])"
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