I receive a fault when adding a word to user dictionary.

[Hans Beinsen]

calibre, version 2.34.0
FEHLER: Nicht abgefangener Fehler: <b>AttributeError</b>:'NoneType' object has no attribute 'primary_locale'

calibre 2.34 [64bit] isfrozen: True is64bit: True
Windows-8-6.2.9200 Windows ('64bit', 'WindowsPE')
('Windows', '8', '6.2.9200')
Python 2.7.9
Windows: ('8', '6.2.9200', '', 'Multiprocessor Free')
Successfully initialized third party plugins: DeDRM && Kindle and Mobipocket DeDRM && KindleUnpack - The Plugin && Kindle Collections && Kobo Utilities
Traceback (most recent call last):
  File "site-packages\calibre\gui2\tweak_book\spell.py", line 1136, in add_all
  File "site-packages\calibre\gui2\tweak_book\spell.py", line 738, in add_words
  File "site-packages\calibre\spell\dictionary.py", line 266, in add_to_user_dictionary
  File "site-packages\calibre\spell\dictionary.py", line 246, in add_user_words
AttributeError: 'NoneType' object has no attribute 'primary_locale'

[Kovid Goyal (kovid)]

You apparently have installed a dictionary that has no primary locale,
or it has been corrupted. I suggest removing any dictionaries you
installed recently and re-installing them. That should take care of
this.

[Kovid Goyal (kovid)]

no followup