Hello Sigil friends. Nice to be here again. Those of you who celebrate it: Happy Thanksgiving!
I downloaded Doitsu's latest EpubCheck 0.4.6.2 and uploaded it to my Sigil plugins. But when I run the EpubCheck, it starts by saying: 'Running epub check 4.2.5'
Question #1. Is this normal?
I ran a FlightCrew validation test on an .epub and got the same error on all the HTML files:
https://imgur.com/a/reC8EFU (The image is also attached.) (BTW the same .epub passed Doitsu's EpubCheck.)
Question #2. What do I need to do about this error?
A while back I changed all my language things (sorry, don't know what to call them) in all my ebooks from:
<html xmlns="http://www.w3.org/1999/xhtml">
to:
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-us" xml:lang="en-US">
Question #3. Was this a good change?
Lastly, I noticed that in the above bracketed things "en-us" and "en-US" are different.
Question #4. Does it affect the epub functionality to leave it as it is or should I change the "en-us" to "en-US" ?
Thank you!