Hi everybody,
I face an issue I never had with Calibre and Kobo.
When I try to transfer my library (yes... the full one) to my brand new Clara HD the transfer fails.
What I did
- First I have to say that I changed the SD card of the Clara to be able to have my full library with me. So I exchanged the existing 8GB with a brand new 128GB (which works already on my Glo HD - so I think that's not the issue).
- I had the configuration Kobo Glo HD FW 3.18 + Calibre 2.68 with the same SD card, and never had an issue.
- Now I bought a Clara HD and I'm working with Calibre 3.32 and a patched version of Kobo 4.10.11655. (I tried the unpached version too, but still have the same issue).
- I reset several times the Clara to factory status - does not change the issue
- I checked my library, all the ebooks seem fine.
- I changed the SD card to make sure the card is working well (and it's working fine on other devices).
What is happening
- I'm used to transfer my full library in batches. So, I launch e.g 5000 books, which works well (transfer in about 25mn + import to Kobo +/- 20min). Takes time, but it's a "one shot" action, as once the basic set up of the Kobo is done, I "just" add the new books, which does not take me more than 15mn.
- Now, what's happening, and absolutely new for me: my first batch works well, the second one is quite long, but still works... and whatever I do, the third one fails. I get an error message from Calibre:
Code:
calibre, version 3.32.0
ERREUR : Erreur: Erreur pendant la communication avec le périphérique
Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 87, in run
File "site-packages\calibre\gui2\device.py", line 540, in _sync_booklists
File "site-packages\calibre\devices\kobo\driver.py", line 947, in sync_booklists
File "site-packages\calibre\devices\usbms\driver.py", line 448, in sync_booklists
File "site-packages\calibre\devices\usbms\driver.py", line 446, in write_prefix
File "site-packages\calibre\ebooks\metadata\book\json_codec.py", line 135, in encode_to_file
File "json\__init__.py", line 251, in dumps
File "json\encoder.py", line 210, in encode
MemoryError
After this error, my pc still recognizes the Kobo, and Kobo even does a proper import of the data, shows me the correct number of books... all seems ok. However, when plug it the next time to Calibe, Calibre starts up, starts to read the content, and after a long long time... closes without any error message or anything...
I'm not able to understand where the issue is coming from. I understand a "memory" error. But it can hardly be a device memory issue, as I have enough free space (particularly after the second batch).
Can anybody help me to understand what is the problem here?
Thanks a lot, and wish you a very nice day