I HAVE searched extensively in this forum and elsewhere and the answers are making things WORSE for me.
Total NEWB questions (IF the answers are super obvious and all this question does is annoy you - PLEASE assist with links to explanations in plain ENGLISH, not in command line code answers)
Situation:
I have a large Calibre library stored on my Win machine (E: drive), with copies on my Macbook (internal HDD), and on a OneDrive account.
I have a sparkly new iPad air 5th gen
I cannot get the iPad to connect in any way shape or form.
I've tried Calibre e-book reader app, Caliber Companion, several other .mobi readers, etc.
I've watched the YouTube videos from "Digitize your Books" until I can almost recite them.
BUT...
When I try to use Calibre reader app on both Mac and Win machines I get:
"Error - No existing library found"
&
I'm stuck on the line in this video
https://www.youtube.com/watch?v=dnWWaCSmBY4
starting ~ 1:13 "... install a client that mirrors the data in the cloud to your local [computer]..."
Sorry - I don't speak IT...
HELP PLEASE!