[cybmole]

posting this in devices subforum , as the symptom appears when using send to device.
but I suspect the root cause is not a device issue

had this one time in v7 am seeing it now in v8. - twice in the last few days

I connect my sony & then try to send a book via calibre. ( a book that was edited yesterday). Calibre gives me
OSError: [Errno 2] No such file or directory

log for failure:
Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 890, in dispatch_sync_event
File "site-packages\calibre\gui2\device.py", line 1092, in sync_to_device
File "site-packages\calibre\gui2\library\models.py", line 441, in get_preferred_formats_from_ids
File "site-packages\calibre\ptempfile.py", line 60, in __init__
File "tempfile.py", line 293, in mkstemp
File "tempfile.py", line 228, in _mkstemp_inner
OSError: [Errno 2] No such file or directory

I then get it again ( see below) if I select view in calibre tool bar for that book ( though the book is there & is fine if I go via open path...
log for view failure:
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\view.py", line 200, in view_book
File "site-packages\calibre\gui2\actions\view.py", line 270, in _view_books
File "site-packages\calibre\gui2\actions\view.py", line 238, in _view_calibre_books
File "site-packages\calibre\gui2\actions\view.py", line 104, in view_format_by_id
File "site-packages\calibre\gui2\actions\view.py", line 134, in _view_file
File "site-packages\calibre\gui2\actions\view.py", line 123, in _launch_viewer
File "site-packages\calibre\gui2\jobs.py", line 227, in launch_gui_app
File "site-packages\calibre\utils\ipc\server.py", line 166, in run_job
File "site-packages\calibre\utils\ipc\server.py", line 121, in launch_worker
File "tempfile.py", line 293, in mkstemp
File "tempfile.py", line 228, in _mkstemp_inner
OSError: [Errno 2] No such file or directory

a complete exit + restart of calibre fixes it, so it's a calibre bug, not a sony bug. after a restart I can send/ view the problem book(s) OK.

so what is happening here. it seems that calibre "forgets" where the book is?

my only other clues : calibre is always left running except for updates, so is the PC, I just use sleep / wake. I have worked on that book in sigil sometime in last couple of days so sigil will have written a revised copy back into calibre library.

this was the case with the v7 error also - work on book in sigil ( from calibre i.e. my workflow is that open with editor option in calibre launches sigil. sigil save puts revised copy back into library. 99.9% of the times there is no issue.



one more clue - maybe between edit/save of book and the attempt to send to device, i have run ccleaner which will wipe temporary files. could be it wipes too aggressively ?