Hi,
I have a similar issue with Evernote Windows 10 app.
File > Import > Mocrosoft OneNote says:
"Importing note requires the desktop version of OneOne 2007 or higher, avaiable at www.onenote.com. OneNote from the Windows Store will not work."
As per this message I went to www.onenote.com, but there is no "desktop version" (or any other app) there.
What's next? Forget migrating to Evernote and just stick with OneOne?
Thanks