Calibre 0.5.0 crashes on startup

[th3w]

Hi,

i had a problem on my Vista Laptop too. Calibre started, but didn´t show the GUI. Taskmanager showed a steady 50% CPU-Time of the process.
I rememberd yesterday, that on the same day of the release of calibre 0.5 that Microsofts Windowsdefender got an update and found the hosts-file suspicious and I clicked repair.
I found this news yesterday:
http://www.h-online.com/security/Win...--/news/112814
I looked and the localhost-part on my system had been deleted. I edited the file and voila, the GUI is back

Bye
Thomas
Bye
Thomas

[theoak]

I'm having the same problem 0.5.0 installed ok then crashes saying database locked. I have removed and re-installed onto the same drive as my library but it still crashes so does 0.5.1.

[kovidgoyal]

disable your antivirus

[desertgrandma]

Could it be something else?

I ask, because I'm running Vista, and have Windows defender enabled. I just checked it, and it tells me "No unwanted or harmful software detected, windows running normally"

I also run McAfee anti-virus, which is given free to Cox users in this area.

Security Center,
Virus scan
personal firewall,
site advisor and
parental controls are all enabled.

[kovidgoyal]

various anti virus programs cripple your computer to varying degrees. So for example, calibre is often affected by (among others) Kaspersky AV but not by McAfee

[desertgrandma]

Right, and on all three computers I've owned, Norton NEVER worked right, and always caused problems.

[theoak]

Just re-installed 5.1 and then had to "add" all my books from book folder as Calibre would not open my database. Still I have success in that Calibre is working again even though some of the books have had their data scrambled.
I am using a laptop running vista with norton anti-virus and my hard drive showing as 2 drives.

[theoak]

Hm further to above post now when I try to ammend my book information I get the following message :-

attempt to write a readonly database RemoteTraceback (most recent call last): File "calibre\library\sqlite.pyo", line 119, in run OperationalError: attempt to write a readonly database
Detailed traceback:
Traceback (most recent call last):
File "calibre\gui2\library.pyo", line 595, in setData
File "calibre\library\database2.pyo", line 852, in set
File "calibre\library\database2.pyo", line 908, in set_authors
File "calibre\library\sqlite.pyo", line 146, in run
DatabaseException: attempt to write a readonly database
RemoteTraceback (most recent call last):
File "calibre\library\sqlite.pyo", line 119, in run
OperationalError: attempt to write a readonly database

Any ideas anyone??

[gilamon]

Originally Posted by kovidgoyal

various anti virus programs cripple your computer to varying degrees. So for example, calibre is often affected by (among others) Kaspersky AV but not by McAfee

I disabled all the AV but it is still behaving the same way. Also I've been running previous versions of the software with no issues on this machine with the exact same setup.

One question I have is that 0.50.0 loaded fine originally but has never worked since. Is there a config file or registry entry I need to get rid off?

[itimpi]

Have you checked the permissions on the Calibre library folder and sub-folders and files, and in particular on the metadata.db3 file? Sounds as if you do not have permission to write to one of these.

[kovidgoyal]

@gilamon post the output from running in a command prompt

calibre-debug -g

[gilamon]

Originally Posted by kovidgoyal

@gilamon post the output from running in a command prompt

calibre-debug -g

The output is below. I had originally pointed it to a server folder with the book files and database. I've since unistalled and reinstalled but it looks like it's pointing to old location. Can't get far enough into the GUI to change it and I've tried the new library console command

----------------------------------

C:\Program Files\calibre>calibre-debug -g
link hasn't been detected!
link hasn't been detected!
Traceback (most recent call last):
File "debug.py", line 147, in <module>
File "debug.py", line 120, in main
File "C:\Program Files\calibre\library.zip\calibre\gui2\main.py", line 1582, i
n main
File "C:\Program Files\calibre\library.zip\calibre\gui2\main.py", line 80, in
__init__
File "C:\Program Files\calibre\library.zip\calibre\gui2\main.py", line 1413, i
n read_settings
File "C:\Program Files\calibre\library.zip\calibre\gui2\main.py", line 1409, i
n initialize_database
File "os.pyo", line 157, in makedirs
WindowsError: [Error 3] The system cannot find the path specified: u'V:\\'

[kovidgoyal]

calibre --with-library "c:\path\to\some\existing\empty\folder"

[gilamon]

Originally Posted by kovidgoyal

calibre --with-library "c:\path\to\some\existing\empty\folder"

Got it to work using the command above.

Thanks!