Touch Error communicating with the device

[renzii]

I first downloaded Calibre 18 months ago and I love it. Then I received a Nook Colour and loved being able to sync my collection on it. Two months ago, I switched to a Nook HD, and was able to move books to and read on it very well.

Two days ago I added a micro SD chip and began moving my large ebook collection to it. Everything was going well, then all of a sudden it started telling me that there was an error communicating with the device. I still see my nook in Windows and it is appearing as a device in Calibre.

Does any one know why this is happening and how I can resolve this?
Thanks in advance for any help.

This message appeared when I first hooked it up.

Failed to write data to file, commit failed: hr=2147500037 facility=0 error_code=16389 description: Unspecified error


Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 85, in run
File "site-packages\calibre\gui2\device.py", line 470, in _books
File "site-packages\calibre\devices\mtp\driver.py", line 191, in books
File "site-packages\calibre\devices\mtp\driver.py", line 163, in get_driveinfo
File "site-packages\calibre\devices\mtp\driver.py", line 154, in _update_drive_info
File "site-packages\calibre\devices\mtp\windows\driver.py", line 33, in check_thread
File "site-packages\calibre\devices\mtp\windows\driver.py", line 416, in put_file
WPDError: Failed to write data to file, commit failed: hr=2147500037 facility=0 error_code=16389 description: Unspecified error


This message appeared when I tried to upload a book to my Nook.

Failed to write data to file, commit failed: hr=2150236166 facility=42 error_code=6 description: The requested value cannot be determined.


Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 85, in run
File "site-packages\calibre\gui2\device.py", line 551, in _upload_books
File "site-packages\calibre\devices\mtp\driver.py", line 413, in upload_books
File "site-packages\calibre\devices\mtp\windows\driver.py", line 33, in check_thread
File "site-packages\calibre\devices\mtp\windows\driver.py", line 416, in put_file
WPDError: Failed to write data to file, commit failed: hr=2150236166 facility=42 error_code=6 description: The requested value cannot be determined.