Thread: [Device Plugin] Kobo Touch Extended Driver
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Old 08-28-2017, 08:22 AM   #1719
davidfor
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Quote:
Originally Posted by reinhardtjh View Post
Thanks for your information. I probably broke the cardinal rule of changing only one thing at a time and loaded new firmware onto the Kobo, changed the driver in Calibre and who knows what else all at the same time. Other things changed on my Kobo at the same time so I attributed it to the new firmware. Books that I had previously loaded and erased, now failed to load, but I must have loaded them with the "normal" driver and switched to the extended at some point later on.

I must have something else set wrong as the "Silently Ignore Failed Converions" option is checked (as shown by this screen shot) and still I get the error. Maybe it's the "Upload DRM-encumbered ePub files" I'll have to disable that and try.

It's interesting that it only happens with most Adobe DRM file, but not all. They must use differing versions of DRM.
Firstly, you are right, it is the "Upload DRM-encumbered ePub files" option. I have no idea how missed it when I looked before.

The upload should fail for all books in the calibre library that have DRM. A likely reason is that something has happened to the DRM removal plugins so that when you add books to the library they don't get the DRM stripped. Try opening the books that have the problem with the calibre viewer. If they still have DRM, the viewer will display DRM error.

And, as you have discovered, the option isn't working. I've just tried it and see the same error for a book with DRM. Looking at the code, something has changed in the underlying calibre code for opening a book for changing. It shouldn't be to hard to fix. I'll try and look at it sometime this week.
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