Hey Guys,

I’m very new to this project and have a problem with creating “Soprano::Backend* backend”.


This is what I’m doing:


#include <Soprano/Soprano>

#include <Soprano/Backend>


int main(int argc, char *argv[]){


    const Soprano::Backend* backend = NULL;

    backend = Soprano::discoverBackendByName("virtuosobackend");

    //backend = Soprano::discoverBackendByName("redland");

    return 1;



In the .pro File of my Project I’m using this line:

LIBS += -L/usr/local/lib/x86_64-linux-gnu/ -lsoprano


I’m not using this here:

#PKGCONFIG += soprano


This is what I get:


Could not load plugin at  "/usr/local/lib/x86_64-linux-gnu/soprano/libsoprano_virtuosobackend.so" .  "Plugin verification data mismatch in '/usr/local/lib/x86_64-linux-gnu/soprano/libsoprano_virtuosobackend.so'"


Here the Facts about the System:

·         Ubuntu 12.04 x64

·         Qt 5.2.1

·         Redland 1.0.17 build installed by myself

·         Raptor 2.0.14 build installed by myself,

·         Rasqal 0.9.32 build installed by myself  

·         Gcc 4.6.3


I’ve checked out the actual Master repository (https://projects.kde.org/projects/kdesupport/soprano/repository/show?rev=master) and changed the QT5_BUILD Flag to TRUE
Any suggestion what I’m doing wrong?

Best Regards



M. Sc. Denis Smirnov

Universität der Bundeswehr München (UniBwM)

Fakultät für Luft- und Raumfahrttechnik

Institut für Flugsysteme (LRT13-IFS)

Professur für Luftfahrttechnik

Gebäude: 41-200

Werner-Heisenberg-Weg 39

85577 Neubiberg

Tel.: 089 / 6004 - 3683

Email: denis.smirnov@unibw.de



M. Sc. Denis Smirnov

University of Armed Forces

Institute of Flight Systems

Aerospace Engineering Department

Bundeswehr University Munich

85577 Neubiberg, GERMANY

Phone: +49-89-6004-3683,

Email: denis.smirnov@unibw.de