Hi there,

I am experiencing many crashes of dolphin and gwenview which I think are related to nepomuk. I use the kde 4.3 rc1 packages from kubuntu.

When adding comments, tags or ratings in the side panel, dolphin crashes with the error message:

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dolphin: symbol lookup error: /usr/lib/libnepomuk.so.4: undefined symbol: _ZN7Soprano4NodeC1ERKNS_12LiteralValueE

Similarly, when I enter a folder containing images with gwenview, it immediately crashes with the error message:

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gwenview: symbol lookup error: /usr/lib/libnepomuk.so.4: undefined symbol: _ZN7Soprano4NodeC1ERKNS_12LiteralValueE

I read already that for the resolution of this problem, the nepomuk configuration might be important, but have not been able to fix it. So maybe this information is useful for the experts:

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sudo aptitude search soprano

returns

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i   libsoprano-dbg                                   - debugging symbols for the Soprano RDF framework
i A libsoprano-dev                                   - development files for the Soprano RDF framework
i   libsoprano-doc                                   - developer documentation for the Soprano RDF framework
i   libsoprano2.0-cil                                - Soprano bindings for CLI
i   libsoprano4                                      - libraries for the Soprano RDF framework
i   soprano-backend-sesame                           - backend for Soprano RDF framework
i   soprano-daemon     


and

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more .kde/share/config/nepomukserverrc

returns

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[Basic Settings]
Configured repositories=main
Start Nepomuk=true

[Service-nepomukmigration1]
autostart=false

[Service-nepomukstrigiservice]
autostart=true

[main Settings]
Storage Dir[$e]=$HOME/.kde/share/apps/nepomuk/repository/main/
Used Soprano Backend=sesame2


If I do

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ps -Af | grep nepomuk

I get

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name   3859     1  0 12:01 ?        00:00:00 kdeinit4: nepomukserver [kdeinit]
name   4581  4237  0 12:22 pts/2    00:00:00 grep nepomuk


so nepomuk seems to be running, but when I enter the nepomuk dialog in the system config tool, I get a message saying that nepomuk could not be started , no soprano database driver available.

Any idea what's wrong here and how I could fix it?


Zsaja

You appear to be encountering "dependency hell" meaning your packages are out of sync with each other. Please refresh your repositories and ensure all KDE, Nepomuk, Qt, Soprano packages are fully updated.

I updated all my packages with aptitude, it now says there are no unused updates available. What appears strange to me is that when I search for "nepomuk" with aptitude or kpackagekit, it returns nothing. So the nepomuk packages have some other name? Can some kubuntu user confirm this?

What just came to my mind is that some time ago a friend changed some nepomuk stuff on my computer and - I think - installed some soprano version from svn because this was supposed to be better than the default one. Is it possible that I have conflicting versions of soprano on my system, and how would I check and repair that?

Zsaja

That would definitely do it... especially since that will now be an "Older" version. Nepomuk is scattered across KDE ( Some parts in libs, some in base, others with applications that are providing file parsers for Nepomuk, etc ) so it probably doesn't have a package.

Soprano however is usually seperate so please verify it is installed. Also, can you please provide the output of the following:

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echo $LD_LIBRARY_PATH
echo $PATH

Ok, so I checked what soprano stuff I have installed. Aptitude says it is the following

i libsoprano-dbg
i A libsoprano-dev
i libsoprano-doc
i libsoprano2.0-cil
i libsoprano4
i soprano-backend-sesame
i soprano-daemon

Moreover, echo $LD_LIBRARY_PATH returns nothing, and echo $PATH some folders I manually added and

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/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

I really appreciate your help , bcooksley, do you need any more info?

Best, Zsaja

You will need to use Apt to find which parts of KDE / Qt / Nepomuk / Soprano do not match those that are in the packages, and force reinstall those. Unfortunately I do not know the Rpm equivalent for this.