FIND SIMILAR BOOKS (IN SERIES) => ATTRIBUTE ERROR "FormatsList" has no attribute "replace"

[str8arrow]

BUG- occurs in calibre, version 2.77.0 (and in versions 2.55.0 up to 2.77.0)
      on OS Windows 10 PRO x64 (build 10586.0)

ERROR: Unhandled exception: <b>AttributeError</b>:'FormatsList' object has no attribute 'replace'

SHOW DETAILS PROVIDES THE FOLLOWING REPORT:

calibre 2.55 [64bit] embedded-python: 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 && K4PC, K4Mac, Kindle Mobi and Topaz DeDRM && Inept Epub DeDRM && Temp Marker && Open With && food network Recipe Reader && Ignoble Epub DeDRM && Extract ISBN && Inept PDF DeDRM && Recipe Reader && Generate Cover && Favourites Menu && Find Duplicates && BigOven Recipe Reader && Quality Check && Reading List && Manage Series && Goodreads && Barnes & Noble && Obok DeDRM && Derive_Genres && eReader PDB 2 PML && all recipes Recipe Reader && User Category && Author Book Count && KindleUnpack - The Plugin && Search The Internet
Traceback (most recent call last):
  File "site-packages\calibre\gui2\actions\similar_books.py", line 78, in show_similar_books
AttributeError: 'FormatsList' object has no attribute 'replace'

I did not know what to do as the original report was listed 'Invalid" due to missing info. I therefore had to repost this bug in order to provide the required details. Sorry for any duplication.

Thanks, for letting me know what was missing Kovid -
D.Alidina

[Kovid Goyal (kovid)]

You have likely changed what field find similar books searches in
Preferences->Searching to something other than series, change it back
and you will be fine.