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Old 01-21-2015, 02:54 PM   #1
JessRawesome
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IOError: [Errno 22] invalid mode ('w') or filename
Hi there! I've been using Calibre for years now, and I totally love it. I added a couple of new books to my library last night, then closed the app. Just now I plugged my Kindle Paperwhite into my computer and tried to open the app, but was greeted with the following error:

calibre, version 2.15.0
ERROR: Unhandled exception: <b>IOError</b>:[Errno 22] invalid mode ('w') or filename: u'/Volumes/JetDrive/Google JetDrive/Books/Calibre Library/calibre_test_case_sensitivity.txt'

calibre 2.15 isfrozen: True is64bit: True
Darwin-14.0.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '14.0.0', 'Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64')
Python 2.7.8
OSX: ('10.10.1', ('', '', ''), 'x86_64')
Successfully initialized third party plugins: Find Duplicates && Kindle Collections
Traceback (most recent call last):
File "site-packages/calibre/gui2/dialogs/choose_library.py", line 132, in accept
File "site-packages/calibre/gui2/dialogs/choose_library.py", line 107, in perform_action
File "site-packages/calibre/gui2/actions/choose_library.py", line 586, in choose_library_callback
File "site-packages/calibre/gui2/ui.py", line 630, in library_moved
File "site-packages/calibre/db/legacy.py", line 70, in __init__
File "site-packages/calibre/db/legacy.py", line 44, in create_backend
File "site-packages/calibre/db/backend.py", line 349, in __init__
File "site-packages/calibre/utils/filenames.py", line 115, in is_case_sensitive
IOError: [Errno 22] invalid mode ('w') or filename: u'/Volumes/JetDrive/Google JetDrive/Books/Calibre Library/calibre_test_case_sensitivity.txt'


Can someone please tell me if there is a way to fix this? I'll admit I don't know what the above message means, but I'm good at following directions!

I really appreciate the help!
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Old 01-21-2015, 10:44 PM   #2
kovidgoyal
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Move your calibre library out of JetDrive, which I assume is some kind of networked drive, see http://manual.calibre-ebook.com/faq....rked-drive-nas
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Old 02-09-2015, 03:05 PM   #3
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I have an IO error too. It occurs intermittently when I page to a new chapter in my Calibre reader. When this happens, everything locks up and I have to close my reader and reopen it to continue reading. I copied the error message to my clipboard. Here what I got:

calibre, version 2.19.0
ERROR: Unhandled exception: <b>IOError</b>:[Errno 2] No such file or directory: u'C:\\Users\\TWHAN_~1\\AppData\\Local\\Temp\\calib re_lmglh9\\fueox2_ebook_iter\\OEBPS\\Essi_97816121 94097_epub_c05_r1.htm'

calibre 2.19 isfrozen: True is64bit: False
Windows-8-6.2.9200 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '8', '6.2.9200')
Python 2.7.9
Windows: ('8', '6.2.9200', '', 'Multiprocessor Free')
Successfully initialized third party plugins: Overdrive Link
Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\documentview.py", line 1273, in keyPressEvent
File "site-packages\calibre\gui2\viewer\documentview.py", line 1300, in handle_key_press
File "site-packages\calibre\gui2\viewer\documentview.py", line 1284, in paged_col_scroll
File "site-packages\calibre\gui2\viewer\main.py", line 930, in next_document
File "site-packages\calibre\gui2\viewer\main.py", line 679, in load_path
File "site-packages\calibre\gui2\viewer\documentview.py", line 890, in load_path
File "site-packages\calibre\ebooks\oeb\display\webview.py", line 44, in load_html
IOError: [Errno 2] No such file or directory: u'C:\\Users\\TWHAN_~1\\AppData\\Local\\Temp\\calib re_lmglh9\\fueox2_ebook_iter\\OEBPS\\Essi_97816121 94097_epub_c05_r1.htm'

Any help to remedy this would be greatly appreciated.
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Old 02-09-2015, 04:19 PM   #4
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Try setting the environment "CALIBRE_TEMP_DIR" -- occasionally people report similar problems which are due to the permissions on the TEMP folder. If you set a calibre temp folder, say, in the parent folder of your library folder, this should get resolved.

See: http://manual.calibre-ebook.com/cust...ment-variables


Alternatively -- your antivirus might be messing around with calibre's attempts to write temporary files. Make sure calibre is excluded from your antivirus's real-time scanning.
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Old 02-13-2015, 07:16 AM   #5
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I'll try excluding Calibre2 programs from my virus scans.
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Old 02-17-2015, 06:29 PM   #6
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I tried excluding the Calibre app folders from my virus scan. Didn't help.

How do I go about setting the environment "CALIBRE_TEMP_DIR"?
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Old 02-17-2015, 10:15 PM   #7
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@TWHanson1 - same as any other similar environment variable.

Create a directory such as %systemdrive%\CalibreTemp

Then set CALIBRE_TEMP_DIR as a user variable to that directory, either using the SetX - Set environment variables command, or via Control Panel->System->Advanced Settings->Environment Settings

BR
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