Traceback (most recent call last):


 "site-packages/calibre/utils/formatter.py", line 377, in safe_format


 "site-packages/calibre/utils/formatter.py", line 342, in evaluate


 "site-packages/calibre/utils/formatter.py", line 266, in _eval_program


 "site-packages/calibre/utils/formatter.py", line 108, in program


 "site-packages/calibre/utils/formatter.py", line 115, in statement


 "site-packages/calibre/utils/formatter.py", line 159, in expr


 "site-packages/calibre/utils/formatter.py", line 115, in statement


 "site-packages/calibre/utils/formatter.py", line 159, in expr


 "site-packages/calibre/utils/formatter.py", line 115, in statement


 "site-packages/calibre/utils/formatter.py", line 159, in expr


 "site-packages/calibre/utils/formatter.py", line 115, in statement


 "site-packages/calibre/utils/formatter.py", line 171, in expr


 "site-packages/calibre/utils/formatter_functions.py", line 134, in eval_


 "site-packages/calibre/utils/formatter_functions.py", line 361, in evaluate


 "site-packages/calibre/ebooks/metadata/book/formatter.py", line 31, in get_value
ValueError: Value: unknown field #kobo

Traceback (most recent call last):


 "site-packages\calibre\utils\formatter.py", line 375, in safe_format


 "site-packages\calibre\utils\formatter.py", line 340, in evaluate


 "site-packages\calibre\utils\formatter.py", line 264, in _eval_program


 "site-packages\calibre\utils\formatter.py", line 106, in program


 "site-packages\calibre\utils\formatter.py", line 113, in statement


 "site-packages\calibre\utils\formatter.py", line 157, in expr


 "site-packages\calibre\utils\formatter.py", line 113, in statement


 "site-packages\calibre\utils\formatter.py", line 157, in expr


 "site-packages\calibre\utils\formatter.py", line 113, in statement


 "site-packages\calibre\utils\formatter.py", line 157, in expr


 "site-packages\calibre\utils\formatter.py", line 113, in statement


 "site-packages\calibre\utils\formatter.py", line 169, in expr


 "site-packages\calibre\utils\formatter_functions.py", line 132, in eval_


 "site-packages\calibre\utils\formatter_functions.py", line 359, in evaluate


 "site-packages\calibre\ebooks\metadata\book\formatter.py", line 32, in get_value
ValueError: Value: unknown field #genre
