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tEmrich · 04-19-2011, 05:53 PM

I'm having a similar problem after updating to Calibre 0.7.56 on my win7 64 bit system: there are weird error messages like:

calibre, version 0.7.56
ERROR: Unhandled exception: <b>AttributeError</b>:'list' object has no attribute 'add_book'

Traceback (most recent call last):
File "site-packages\calibre\gui2\__init__.py", line 278, in dispatch
File "site-packages\calibre\gui2\device.py", line 1249, in books_uploaded
File "site-packages\calibre\gui2\device.py", line 393, in add_books_to_metadata
File "site-packages\calibre\devices\usbms\driver.py", line 307, in add_books_to_metadata
AttributeError: 'list' object has no attribute 'add_book'

calibre, version 0.7.56
ERROR: Unhandled exception: <b>AttributeError</b>:'QWidget' object has no attribute 'filler'

Traceback (most recent call last):
File "site-packages\calibre\gui2\layout.py", line 321, in resizeEvent
AttributeError: 'QWidget' object has no attribute 'filler'

After that calibre crashes and is killed by windows. Repair the install or un- and reinstall didn't help (C:\Program Files\Calibre2 had been deleted). Deleting the calibre folder in my user directory or using a new library didn't help too. I solved the problem by uninstalling calibre 0.7.56 and going back to 0.7.55 after deleting the calibre registry entries (that was just a try... don't know if it's a good idea).

Maybe I will try updating to the next version as 0.7.56 still crashes after updating.

04-19-2011, 05:53 PM	#8
tEmrich Junior Member Posts: 9 Karma: 10 Join Date: Apr 2011 Location: Germany Device: Kindle 3	I'm having a similar problem after updating to Calibre 0.7.56 on my win7 64 bit system: there are weird error messages like: calibre, version 0.7.56 ERROR: Unhandled exception: <b>AttributeError</b>:'list' object has no attribute 'add_book' Traceback (most recent call last): File "site-packages\calibre\gui2\__init__.py", line 278, in dispatch File "site-packages\calibre\gui2\device.py", line 1249, in books_uploaded File "site-packages\calibre\gui2\device.py", line 393, in add_books_to_metadata File "site-packages\calibre\devices\usbms\driver.py", line 307, in add_books_to_metadata AttributeError: 'list' object has no attribute 'add_book' calibre, version 0.7.56 ERROR: Unhandled exception: <b>AttributeError</b>:'QWidget' object has no attribute 'filler' Traceback (most recent call last): File "site-packages\calibre\gui2\layout.py", line 321, in resizeEvent AttributeError: 'QWidget' object has no attribute 'filler' After that calibre crashes and is killed by windows. Repair the install or un- and reinstall didn't help (C:\Program Files\Calibre2 had been deleted). Deleting the calibre folder in my user directory or using a new library didn't help too. I solved the problem by uninstalling calibre 0.7.56 and going back to 0.7.55 after deleting the calibre registry entries (that was just a try... don't know if it's a good idea). Maybe I will try updating to the next version as 0.7.56 still crashes after updating.