Calibre won't communicate with Kobo

goldeneyeb · 10-25-2019, 10:00 AM

Hi. I have used Calibre for several years and it worked great till recently. I installed the new Catalina iOS and the newest version of Calibre. Now every time I open Calibre, I get the message it cannot communicate with device.

calibre, version 4.2.0
ERROR: Error: Error communicating with device

Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/KOBOeReader/driveinfo.calibre'

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 90, in run
File "site-packages/calibre/gui2/device.py", line 473, in _get_device_information
File "site-packages/calibre/devices/kobo/driver.py", line 1506, in get_device_information
File "site-packages/calibre/devices/usbms/driver.py", line 161, in get_device_information
IOError: Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/KOBOeReader/driveinfo.calibre'

I have tried changing ports, changing cables, factory resets, manual factory resets, reinstalling calibre, and even reinstalling Catalina. The Kobo app also doesn't appear to talk to the Kobo. But strangely Adobe Digital Editions works.

I have also looked at the "ignored devices" and even though nothing is listed there, clicked reset allowed devices and restore defaults. This seemed to work briefly yesterday and I could connect to the Kobo, but it stopped working when I tried to reinstall the Kobo app. That gives me the message it can't open the software as it can't be verified as non-malicious unless I go into my security settings and open it from there.

I have also tried a debug, and that just tells me that the Kobo Touch is connected and if I want to debug another device to connect it.

Any suggestions?

kovidgoyal · 10-25-2019, 11:10 AM

As of macOS catalina when you first connect a device to calibre macOS will ask you if you want to allow calibre to connect to it, if you happen to say no, then you will get this error. See for example: https://nektony.com/duplicate-finder...ers-permission

goldeneyeb · 10-25-2019, 01:46 PM

Thanks! That seems to have fixed Calibre. Now to see if Kobo app works now too.

10-25-2019, 10:00 AM	#1
goldeneyeb Junior Member Posts: 2 Karma: 10 Join Date: Oct 2019 Device: Kobo Aura Touch H2O	Calibre won't communicate with Kobo Hi. I have used Calibre for several years and it worked great till recently. I installed the new Catalina iOS and the newest version of Calibre. Now every time I open Calibre, I get the message it cannot communicate with device. calibre, version 4.2.0 ERROR: Error: Error communicating with device Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/KOBOeReader/driveinfo.calibre' Traceback (most recent call last): File "site-packages/calibre/gui2/device.py", line 90, in run File "site-packages/calibre/gui2/device.py", line 473, in _get_device_information File "site-packages/calibre/devices/kobo/driver.py", line 1506, in get_device_information File "site-packages/calibre/devices/usbms/driver.py", line 161, in get_device_information IOError: Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/KOBOeReader/driveinfo.calibre' I have tried changing ports, changing cables, factory resets, manual factory resets, reinstalling calibre, and even reinstalling Catalina. The Kobo app also doesn't appear to talk to the Kobo. But strangely Adobe Digital Editions works. I have also looked at the "ignored devices" and even though nothing is listed there, clicked reset allowed devices and restore defaults. This seemed to work briefly yesterday and I could connect to the Kobo, but it stopped working when I tried to reinstall the Kobo app. That gives me the message it can't open the software as it can't be verified as non-malicious unless I go into my security settings and open it from there. I have also tried a debug, and that just tells me that the Kobo Touch is connected and if I want to debug another device to connect it. Any suggestions?

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10-25-2019, 11:10 AM	#2
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	As of macOS catalina when you first connect a device to calibre macOS will ask you if you want to allow calibre to connect to it, if you happen to say no, then you will get this error. See for example: https://nektony.com/duplicate-finder...ers-permission

10-25-2019, 01:46 PM	#3
goldeneyeb Junior Member Posts: 2 Karma: 10 Join Date: Oct 2019 Device: Kobo Aura Touch H2O	Thanks! That seems to have fixed Calibre. Now to see if Kobo app works now too.

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