[DiapDealer]

Hi Carolyn,

Try the 0.1.1 version of the plugin now available in the first post. I _think_ I've adapted it to also check for a missing xml declaration in the epub's opf file and then add one if it's missing (regardless of the epub's package version).

Let me know if it gives you any trouble. Hopefully, it will work satisfactorily until we get a new version of Sigil released that addresses these issues.