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

Traceback (most recent call last):


 "C:\Program 
s\Python37\lib\threading.py", line 926, in _bootstrap_inner

self.run()


 "C:\Program 
s\Python37\lib\threading.py", line 870, in run

self._target(*self._args, **self._kwargs)


 "G:\Paddle\PaddleDetection\ppdet\data\parallel_map.py", line 161, in _consume

signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())


 "C:\Program 
s\Python37\lib\signal.py", line 47, in signal

handler = _signal.signal(_enum_to_int(signalnum), _enum_to_int(handler))
ValueError: signal only works in main thread
