package element unique-identifier attribute does not resolve to a dc:identifier element (given reference was "") package dcterms:modified meta element must occur exactly once dcterms:modified illegal syntax (expecting: "CCYY-MM-DDThh:mm:ssZ") "record" links only applies to the Publication (must not have a "refines" attribute). "voicing" links must have a "refines" attribute. @refines must be a relative URL WARNING: @refines should instead refer to "" using a fragment identifier pointing to its manifest item ("#") @refines missing target id: "" A term property must be associated with a dc:subject when an authority is specified An authority property must be associated with a dc:subject when a term is specified Only one pair of authority and term properties can be associated with a dc:subject Property "authority" must refine a "subject" property. Property "belongs-to-collection" can only refine other "belongs-to-collection" properties. Property "collection-type" must refine a "belongs-to-collection" property. Property "collection-type" cannot be declared more than once to refine the same "belongs-to-collection" expression. Property "display-seq" cannot be declared more than once to refine the same expression. Property "file-as" cannot be declared more than once to refine the same expression. Property "group-position" cannot be declared more than once to refine the same expression. Property "identifier-type" must refine an "identifier" or "source" property. Property "identifier-type" cannot be declared more than once to refine the same expression. Property "role" must refine a "creator", "contributor", or "publisher" property. The "source-of" property must have the value "pagination" The "source-of" property must refine a "source" property. Property "source-of" cannot be declared more than once to refine the same "source" expression. Property "term" must refine a "subject" property. Property "title-type" must refine a "title" property. Property "title-type" cannot be declared more than once to refine the same "title" expression. itemref element idref attribute does not resolve to a manifest item element spine element toc attribute must reference the NCX manifest item (referenced media type was "") spine element toc attribute must be set when an NCX is included in the publication Exactly one manifest item must declare the "nav" property (number of "nav" items: ). The manifest item representing the Navigation Document must be of the "application/xhtml+xml" type (given type was "") Found "data-nav" items. The manifest must not include more than one Data Navigation Document. Multiple occurrences of the "cover-image" property (number of "cover-image" items: ). The "rendition:flow" property must not occur more than one time in the package metadata. The "rendition:layout" property must not occur more than one time in the package metadata. The "rendition:orientation" property must not occur more than one time in the package metadata. The "rendition:spread" property must not occur more than one time in the package metadata. The "rendition:viewport" property must not occur more than one time as a global value in the package metadata. The "rendition:flow" property must not be set on elements with a "refines" attribute The value of the "rendition:flow" property must be either "paginated", "scrolled-continuous", "scrolled-doc", or "auto" The "rendition:layout" property must not be set on elements with a "refines" attribute The value of the "rendition:layout" property must be either "reflowable", "pre-paginated", or "roll" The "rendition:orientation" property must not be set on elements with a "refines" attribute The value of the "rendition:orientation" property must be either "landscape", "portrait" or "auto" The "rendition:spread" property must not be set on elements with a "refines" attribute The value of the "rendition:spread" property must be either "none", "landscape", "portrait", "both" or "auto" The "rendition:spread" property must not be set on elements with a "refines" attribute The value of the "rendition:spread" property must be either "none", "landscape", "portrait", "both" or "auto" The value of the "rendition:viewport" property must be of the form "width=x, height=y" Properties "rendition:flow-paginated", "rendition:flow-scrolled-continuous", "rendition:flow-scrolled-doc" and "rendition:flow-auto" are mutually exclusive Properties "rendition:layout-reflowable" and "rendition:layout-pre-paginated" are mutually exclusive Layout override "" must not be used in roll publications Properties "rendition:orientation-landscape", "rendition:orientation-portrait" and "rendition:orientation-auto" are mutually exclusive Properties "page-spread-right", "page-spread-left" and "rendition:page-spread-center" are mutually exclusive Properties "rendition:spread-portrait", "rendition:spread-landscape", "rendition:spread-both", "rendition:spread-none" and "rendition:spread-auto" are mutually exclusive @refines must point to an element within the current collection WARNING: Duplicate "reference" elements with the same "type" and "href" attributes The value of the media:duration property must be a valid SMIL3 clock value media overlay items must be of the "application/smil+xml" type (given type was "") The media-overlay attribute is only allowed on XHTML and SVG content documents. global media:duration meta element not set item media:duration meta element not set (expecting: meta property='media:duration' refines='') The 'active-class' property must not occur more than one time in the package metadata. @refines must not be used with the media:active-class property the 'active-class' property must define a single class name The 'playback-active-class' property must not occur more than one time in the package metadata. @refines must not be used with the media:playback-active-class property the 'playback-active-class' property must define a single class name Itemref refers to the same manifest entry as a previous itemref WARNING: Use of the bindings element is deprecated WARNING: Use of the meta-auth property is deprecated