ERROR: Cannot add books: Failed to add any books
Got an error when I try to add new books out of sudden:
calibre, version 6.12.0
ERROR: Cannot add books: Failed to add any books, click "Show details" for more information.
Failed to start worker process
Traceback (most recent call last):
File "calibre\utils\ipc\pool.py", line 203, in start_worker
File "calibre\utils\ipc\pool.py", line 193, in create_worker
File "calibre\utils\ipc\pool.py", line 74, in start_worker
File "calibre\utils\ipc\simple_worker.py", line 161, in start_pipe_worker
File "subprocess.py", line 966, in __init__
File "subprocess.py", line 1435, in _execute_child
OSError: [WinError 740] The requested operation requires elevation
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