Did you try the factory reset from the menus on the Kobo?  I had a similar
problem a while ago, with an older version of Calibre and it worked
perfectly.  I haven't had any trouble since.

Bill

-----Original Message-----
From: <email address hidden> [mailto:<email address hidden>] On Behalf Of
Karen Chandler
Sent: January 11, 2012 10:56 AM
To: <email address hidden>
Subject: [Bug 807832] Re: Error communicating with device - Kobo -

I just updated new software on Kobo and have the 8.34 version of
Calibre. I did a basic reset of Kobo. I lost some books from reader.
When I add a book it adds it 6 times. Some books I try to add do get
added at all. When I start Calibre it says it recognizes device, but
when I search device library nothing shows up. Any help would be
appreciated.


I get the following message: 

calibre, version 0.8.34
ERROR: Error: Error communicating with device

database disk image is malformed

Traceback (most recent call last):
  File "site-packages/calibre/gui2/device.py", line 81, in run
  File "site-packages/calibre/gui2/device.py", line 332, in _books
  File "site-packages/calibre/devices/kobo/driver.py", line 287, in books
DatabaseError: database disk image is malformed

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You received this bug notification because you are subscribed to a
duplicate bug report (808596).
https://bugs.launchpad.net/bugs/807832

Title:
  Error communicating with device - Kobo -

Status in calibre: e-book management:
  Fix Released

Bug description:
  I have the wireless Kobo and have been using Calibre almost since I
  first got it.  I have just updated to the latest version (0.8.9) just
  in case that helps.  My operating system's Windows 7

  Lately, my Kobo hasn't been processing new content.  I reset it and
  tried again.  Now I'm getting an error message in Calibre and even the
  pre-loaded books aren't showing up in the device tab.

  I tried deleting and loading the images folder and KoboReader.sqlite
  as that corrected someone elses problem, that looked like it might be
  similar.

  Here's the remainder of the error message:

  calibre, version 0.8.9
  ERROR: Error: Error communicating with device

  no such column: FavouritesIndex

  Traceback (most recent call last):
    File "site-packages\calibre\gui2\device.py", line 81, in run
    File "site-packages\calibre\gui2\device.py", line 332, in _books
    File "site-packages\calibre\devices\kobo\driver.py", line 276, in books
    File "site-packages\calibre\devices\kobo\driver.py", line 722, in
sync_booklists
    File "site-packages\calibre\devices\kobo\driver.py", line 694, in
update_device_database_collections
    File "site-packages\calibre\devices\kobo\driver.py", line 609, in
reset_favouritesindex
  OperationalError: no such column: FavouritesIndex

  I followed the directions on the link below, also to no avail.  This
  is the information from the debug:

  Version: 0.8.9
  USB devices on system:
  [u'usb\\root_hub&vid1002&pid4397&rev0000',
   u'usb\\root_hub&vid1002&pid4397&rev0000',
   u'usb\\root_hub&vid1002&pid4397&rev0000',
   u'usb\\root_hub20&vid1002&pid4396&rev0000',
   u'usb\\root_hub20&vid1002&pid4396&rev0000',
   u'usb\\root_hub20&vid1002&pid4396&rev0000',
   u'usb\\vid_148f&pid_2000&rev_6817',
   u'usb\\vid_174f&pid_1134&rev_1118',
   u'usb\\vid_174f&pid_1134&rev_1118&mi_00',
   u'usb\\vid_2237&pid_4161&rev_0110']
  Drives detected:
  	(0) E:\ ~
\\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_KOBO&PROD_EREADER&REV_0110#KBN647123
S03079&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A
0C91EFB8B}
  Available plugins: ADAM ALEX ALURATEK_COLOR ANDROID ARCHOS7O AVANT AZBOOKA
BAMBOOK
  BLACKBERRY BOEYE_BDX BOEYE_BEX BOOQ BOOX COOL_ER CYBOOK DBOOK E52 E71X
  EB511 EB600 EBK52 ECLICTO EDGE EEEREADER ELONEX ESLICK
  FOLDER_DEVICE_FOR_CONFIG GEMEI GER2 HANLINV3 HANLINV5 ILIAD INVESBOOK
  IPAPYRUS IREXDR1000 IREXDR800 IRIVER_STORY ITALICA ITUNES JETBOOK
  JETBOOK_MINI KINDLE KINDLE2 KINDLE_DX KOBO LIBREAIR LUMIREAD MENTOR
  MIBUK MOOVYBOOK N516 N770 N810 NEWSMY NEXTBOOK NOOK NOOK_COLOR NUUT2
  ORIZON PALMPRE PDNOVEL PDNOVEL_KOBO PICO POCKETBOOK301 POCKETBOOK360
  POCKETBOOK360P POCKETBOOK602 POCKETBOOK701 PRS505 README S60 SHINEBOOK
  SNE SOVOS SPECTRA STASH SUNSTECH_EB700 SWEEX TECLAST_K3 THEBOOK
  TREKSTOR USER_DEFINED VELOCITYMICRO WEXLER
   
  Looking for devices...
  	u'usb\\vid_2237&pid_4161&rev_0110'
  		Detected possible device KOBO
   
  Devices possibly connected: Kobo Reader Device Interface,  
  Trying to open Kobo Reader Device Interface ... OK
  Main memory: 'E:\\'
  Total space: (1162457088, 0, 0)


  Thanks in advance for your help!

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