PRS-505 Error communicating with device

zexzex · 07-25-2010, 07:50 AM

Hi!

I'm using calibre version 0.7.10 created by Kovid Goyal and connected to my SONY PRS-505. Calibre after getting contents of the reader shows error message:

ERROR: Error: Error communicating with device

All strings must be XML compatible: Unicode or ASCII, no NULL bytes

Traceback (most recent call last):

File "site-packages\calibre\gui2\device.py", line 68, in run

File "site-packages\calibre\gui2\device.py", line 282, in _books

File "site-packages\calibre\devices\prs505\driver.py", line 133, in books

File "site-packages\calibre\devices\usbms\driver.py", line 160, in books

File "site-packages\calibre\devices\prs505\driver.py", line 153, in sync_booklists

File "site-packages\calibre\devices\prs505\sony_cache.py", line 355, in update

File "site-packages\calibre\devices\prs505\sony_cache.py", line 500, in update_text_record

File "lxml.etree.pyx", line 634, in lxml.etree._Element.set (src/lxml/lxml.etree.c:31548)

File "apihelpers.pxi", line 487, in lxml.etree._setAttributeValue (src/lxml/lxml.etree.c:13896)

File "apihelpers.pxi", line 1242, in lxml.etree._utf8 (src/lxml/lxml.etree.c:19848)

ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes

I was looking throught internet and found that such a bug was fixed in previous versions of calibre. Maybe it get back somehow?
What should I do in this case?

Thanks for advice!

kovidgoyal · 07-25-2010, 11:09 AM

You likely have a corrupted media.xml file. Just delete it and the device will regenerate it for you. (Note that doing this will cause you to lose bookmarks/history)

Timoleon · 07-25-2010, 05:12 PM

Hi Kovid,

I'm also getting an "Error Communicating With Device" message with 0.7.10, with my PRS-505. Windows 7 64bit. Here is the output:

Incorrect padding

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 68, in run
File "site-packages\calibre\gui2\device.py", line 282, in _books
File "site-packages\calibre\devices\prs505\driver.py", line 135, in books
File "site-packages\calibre\devices\prs505\sony_cache.py", line 331, in update_booklist
File "base64.py", line 76, in b64decode
TypeError: Incorrect padding

Any ideas on what is going on and how to remedy it? Thanks!!

kovidgoyal · 07-25-2010, 05:24 PM

That error indicates a media.xml file with a corrupted thumbnail. Delete it and you should be fine, or wait till the next release and I'll add some error handling to ignore corrupted thumbnails.

07-25-2010, 07:50 AM	#1
zexzex Junior Member Posts: 1 Karma: 10 Join Date: Jul 2010 Device: PRS-505	PRS-505 Error communicating with device Hi! I'm using calibre version 0.7.10 created by Kovid Goyal and connected to my SONY PRS-505. Calibre after getting contents of the reader shows error message: ERROR: Error: Error communicating with device All strings must be XML compatible: Unicode or ASCII, no NULL bytes Traceback (most recent call last): File "site-packages\calibre\gui2\device.py", line 68, in run File "site-packages\calibre\gui2\device.py", line 282, in _books File "site-packages\calibre\devices\prs505\driver.py", line 133, in books File "site-packages\calibre\devices\usbms\driver.py", line 160, in books File "site-packages\calibre\devices\prs505\driver.py", line 153, in sync_booklists File "site-packages\calibre\devices\prs505\sony_cache.py", line 355, in update File "site-packages\calibre\devices\prs505\sony_cache.py", line 500, in update_text_record File "lxml.etree.pyx", line 634, in lxml.etree._Element.set (src/lxml/lxml.etree.c:31548) File "apihelpers.pxi", line 487, in lxml.etree._setAttributeValue (src/lxml/lxml.etree.c:13896) File "apihelpers.pxi", line 1242, in lxml.etree._utf8 (src/lxml/lxml.etree.c:19848) ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes I was looking throught internet and found that such a bug was fixed in previous versions of calibre. Maybe it get back somehow? What should I do in this case? Thanks for advice!

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07-25-2010, 11:09 AM	#2
kovidgoyal creator of calibre Posts: 45,615 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You likely have a corrupted media.xml file. Just delete it and the device will regenerate it for you. (Note that doing this will cause you to lose bookmarks/history)

07-25-2010, 05:12 PM	#3
Timoleon Time Enough at Last Posts: 387 Karma: 1151316 Join Date: Feb 2008 Location: New England Device: iPad 3, iPhone 5, Kindle 3, Fire, Sony PRS-350	Hi Kovid, I'm also getting an "Error Communicating With Device" message with 0.7.10, with my PRS-505. Windows 7 64bit. Here is the output: Incorrect padding Traceback (most recent call last): File "site-packages\calibre\gui2\device.py", line 68, in run File "site-packages\calibre\gui2\device.py", line 282, in _books File "site-packages\calibre\devices\prs505\driver.py", line 135, in books File "site-packages\calibre\devices\prs505\sony_cache.py", line 331, in update_booklist File "base64.py", line 76, in b64decode TypeError: Incorrect padding Any ideas on what is going on and how to remedy it? Thanks!!

07-25-2010, 05:24 PM	#4
kovidgoyal creator of calibre Posts: 45,615 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That error indicates a media.xml file with a corrupted thumbnail. Delete it and you should be fine, or wait till the next release and I'll add some error handling to ignore corrupted thumbnails.

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