[jafprrr]

Hi,

I have recently updated to Sigil 0.9.3, from 0.8.x(?)

When trying to create new epubs as Version 3 (epub3.0), I consistently receive the following errors in each of my uploads to CoreSource that I did not have previously. Some of them (such as the language) are clearly related to the Metadata Editor not having been implemented yet, but others are a little harder to work out:

assertion failed: Exactly one manifest item must declare the 'nav' property (number of 'nav' items: 0).
attribute "opf:role" not allowed here; expected attribute "dir", "id" or "xml:lang"
attribute "opf:scheme" not allowed here; expected attribute "id"
element "metadata" incomplete; missing required element "dc:language"
value of attribute "width" is invalid; must be an integer

Any help in resolving these issues would be appreciated. At the moment, I'm thinking of just reverting back to Version 2 (epub2.0), as these issues don't arise in that format.