Comment 2 for bug 793643

Or just change
<dllmap dll="qyoto" target="/usr/lib/cli/qt-dotnet-4.5/libqyoto.so"/>
to
<dllmap dll="qyoto" target="/usr/lib/libqyoto.so.2"/>
in /usr/lib/cli/qt-dotnet-4.5/qt-dotnet.dll.config