[techie6]

I have a 2nd generation Kindle HD 8 and when connecting to Calibre (the latest version), I've been getting a connection error message. However, I can still send books to the device. The software is unable to obtain a list of books on the device. Details of the message:

ERROR: Error: Error communicating with device

Cannot write to file: hr=2147500037 facility=0 error_code=16389 description: Unspecified error

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 87, in run
File "site-packages\calibre\gui2\device.py", line 510, in _books
File "site-packages\calibre\devices\mtp\driver.py", line 218, in books
File "site-packages\calibre\devices\mtp\driver.py", line 190, in get_driveinfo
File "site-packages\calibre\devices\mtp\driver.py", line 180, in _update_drive_info
File "site-packages\calibre\devices\mtp\driver.py", line 151, in put_calibre_file
File "site-packages\calibre\devices\mtp\windows\driver.py", line 37, in check_thread
File "site-packages\calibre\devices\mtp\windows\driver.py", line 441, in put_file
WPDError: Cannot write to file: hr=2147500037 facility=0 error_code=16389 description: Unspecified error

calibre, version 3.12.0

Anyone have any ideas why this is happening?