Calibre Start Up Problems

t.below · 09-19-2015, 07:38 AM

I have a similar problem - starting calibre I get this:
calibre, version 2.38.0
ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click Show details to learn more.

Traceback (most recent call last):
File "site-packages\calibre\gui2\main.py", line 273, in initialize_db_stage2
File "site-packages\calibre\gui2\main.py", line 213, in start_gui
File "site-packages\calibre\gui2\ui.py", line 362, in initialize
File "site-packages\calibre\gui2\tag_browser\ui.py", line 33, in init_tag_browser_mixin
File "site-packages\calibre\gui2\tag_browser\view.py", line 181, in set_database
File "site-packages\calibre\gui2\tag_browser\model.py", line 282, in set_database
File "site-packages\calibre\db\cache.py", line 57, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 587, in set_pref
File "site-packages\calibre\db\backend.py", line 126, in set
File "site-packages\calibre\db\backend.py", line 122, in __setitem__
File "site-packages\calibre\db\backend.py", line 806, in execute
File "c:\cygwin64\home\kovid\sw\build\apsw-3.8.2-r1\src\cursor.c", line 231, in resetcursor
CantOpenError: CantOpenError: unable to open database file

Do you have a solution?

BetterRed · 09-19-2015, 04:26 PM

Moderator Notice
@t.below - welcome to Mobileread

I moved your post to its own thread. As a general rule for the calibre forum at least we prefer members create a new thread rather than post at the back of existing thread.

That error message indicates the database is probably corrupt is some way (see last line).

Was calibre working before?

Do you have a backup of your library ?

BR

t.below · 09-20-2015, 01:43 AM

Yes, my calibre worked excellent before, so I've forgotten about backup, so it's old and useless. I've tried to repair in Win7's control panel, uninstall + install, and restore DB in library maintenance.

t.below · 09-20-2015, 01:52 AM

This is how calibre looks like at start, the left panel is emty (here I tried to insert a screenshot, but I'm asked for the URL of image????)

kovidgoyal · 09-20-2015, 02:06 AM

That error indicates something on your computer is blocking calibre from accessing its db, most likely an antivirus program.

BetterRed · 09-20-2015, 08:56 AM

Quote:

Originally Posted by t.below

This is how calibre looks like at start, the left panel is emty (here I tried to insert a screenshot, but I'm asked for the URL of image????)

@t.below - for future reference ==>> Mobileread - Posting Attachments and Images

There's a set of Guidelines and an extensive FAQ - the links are at the bottom of all MR pages

BR

t.below · 09-20-2015, 10:33 AM

I'm running AVG Internet Security 2015 and have long time before encountering the problem with calibre. And the AVG announces when it thinks it detect threats asking for me to decide actions to take.
At the end of my librery I've got these 2 files:
metadata - a db file 29.300 KB
metadata_db_prefs_backup.json - 16 KB
is that as it should be?

eschwartz · 09-20-2015, 10:44 AM

Yes, that is calibre's database.

If AVG is blocking it, tell AVG those files are safe.

t.below · 09-20-2015, 11:00 AM

I hope this works

t.below · 09-20-2015, 11:06 AM

As I wrote - the AVG hasn't advertised any blockage of these or any other files.

kovidgoyal · 09-20-2015, 11:27 AM

Well something is blocking calibre, if it is not avg then it is something else. If I were you I'd disable avg and reboot in safe mode.

theducks · 09-20-2015, 11:39 AM

Quote:

Originally Posted by t.below

As I wrote - the AVG hasn't advertised any blockage of these or any other files.

Sorry, but don't always count on that happening 100%. I have managed to clear the popup unwittingly. Timing is everything

Now back to your problem: Missing Tag Browser Content.

First, the confirmations: Open the Details pane (book icon): How does the content look?

Fine: I suspect you have managed

to HIDE all the items in the Tag Browser.
(see image)
Right click in that pane: Show: <pick some>
Did that Help?

BetterRed · 09-20-2015, 05:02 PM

Quote:

Originally Posted by theducks

Fine: I suspect you have managed

to HIDE all the items in the Tag Browser.
(see image)
Right click in that pane: Show: <pick some>
Did that Help?

Simpler to Right click tag browser white space, and then select Show all categories

BR

t.below · 09-21-2015, 03:51 AM

Hi!
First I do appreciate your help - thank you!
Please excuse my ignorance - the Details pane (book icon): where is that?
When I right-click the empty left pane (the tag-browser?) nothing happens, no com.box appears.

t.below · 09-21-2015, 03:57 AM

Is this the details pane?

09-19-2015, 07:38 AM	#1
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	Calibre Start Up Problems I have a similar problem - starting calibre I get this: calibre, version 2.38.0 ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click Show details to learn more. Traceback (most recent call last): File "site-packages\calibre\gui2\main.py", line 273, in initialize_db_stage2 File "site-packages\calibre\gui2\main.py", line 213, in start_gui File "site-packages\calibre\gui2\ui.py", line 362, in initialize File "site-packages\calibre\gui2\tag_browser\ui.py", line 33, in init_tag_browser_mixin File "site-packages\calibre\gui2\tag_browser\view.py", line 181, in set_database File "site-packages\calibre\gui2\tag_browser\model.py", line 282, in set_database File "site-packages\calibre\db\cache.py", line 57, in call_func_with_lock File "site-packages\calibre\db\cache.py", line 587, in set_pref File "site-packages\calibre\db\backend.py", line 126, in set File "site-packages\calibre\db\backend.py", line 122, in __setitem__ File "site-packages\calibre\db\backend.py", line 806, in execute File "c:\cygwin64\home\kovid\sw\build\apsw-3.8.2-r1\src\cursor.c", line 231, in resetcursor CantOpenError: CantOpenError: unable to open database file Do you have a solution?

09-20-2015, 11:00 AM	#9
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	screenshot of calibre at start I hope this works Attached Thumbnails

09-21-2015, 03:57 AM	#15
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	Is this the details pane? Attached Thumbnails

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09-19-2015, 04:26 PM	#2
BetterRed null operator (he/him) Posts: 20,558 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	Moderator Notice @t.below - welcome to Mobileread I moved your post to its own thread. As a general rule for the calibre forum at least we prefer members create a new thread rather than post at the back of existing thread. That error message indicates the database is probably corrupt is some way (see last line). Was calibre working before? Do you have a backup of your library ? BR

09-20-2015, 01:43 AM	#3
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	Yes, my calibre worked excellent before, so I've forgotten about backup, so it's old and useless. I've tried to repair in Win7's control panel, uninstall + install, and restore DB in library maintenance.

09-20-2015, 01:52 AM	#4
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	This is how calibre looks like at start, the left panel is emty (here I tried to insert a screenshot, but I'm asked for the URL of image????)

09-20-2015, 02:06 AM	#5
kovidgoyal creator of calibre Posts: 43,844 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That error indicates something on your computer is blocking calibre from accessing its db, most likely an antivirus program.

09-20-2015, 10:33 AM	#7
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	I'm running AVG Internet Security 2015 and have long time before encountering the problem with calibre. And the AVG announces when it thinks it detect threats asking for me to decide actions to take. At the end of my librery I've got these 2 files: metadata - a db file 29.300 KB metadata_db_prefs_backup.json - 16 KB is that as it should be?

09-20-2015, 10:44 AM	#8
eschwartz Ex-Helpdesk Junkie Posts: 19,422 Karma: 85397180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	Yes, that is calibre's database. If AVG is blocking it, tell AVG those files are safe.

09-20-2015, 11:06 AM	#10
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	As I wrote - the AVG hasn't advertised any blockage of these or any other files.

09-20-2015, 11:27 AM	#11
kovidgoyal creator of calibre Posts: 43,844 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Well something is blocking calibre, if it is not avg then it is something else. If I were you I'd disable avg and reboot in safe mode.

09-21-2015, 03:51 AM	#14
t.below Junior Member Posts: 9 Karma: 10 Join Date: Sep 2015 Device: Kindle Paperwhite	Hi! First I do appreciate your help - thank you! Please excuse my ignorance - the Details pane (book icon): where is that? When I right-click the empty left pane (the tag-browser?) nothing happens, no com.box appears.

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