Unhandled exception during Check library

[Ricky56]

I am using Calibre 5.14 on Win10 notebook. I have some trouble to export the DB, so I run "Check library", but the log isn't clear for me:

Successfully initialized third party plugins: Import List (1, 4, 0) && Reading List (1, 6, 6)
Traceback (most recent call last):
File "calibre\gui2\actions\choose_library.py", line 539, in check_library
File "calibre\gui2\ui.py", line 883, in library_moved
File "calibre_plugins.reading_list.action", line 82, in library_changed
File "calibre_plugins.reading_list.action", line 104, in rebuild_menus
File "calibre_plugins.reading_list.config", line 264, in get_list_names
AttributeError: 'dict' object has no attribute 'iteritems'

Where may I find a description of error messages?

[georgemk]

You need to update all your plugins.

Reading List V1.6.6 doesn't run in Calibre 5 as V5 is written in Python 3 and earlier versions of plugins are not backward compatible.

From Reading List version history.

Version 1.6.7 - 16 Jan 2020
Compatibility with Python 3

[Ricky56]

Thank you very much, I updated both plugins "Reading list", "Import list" and everything is ok now.