Won't launch - qbittorrent: symbol lookup error: qbittorrent: undefined symbol: _ZN10libtorrent7sessionC1ERKNS_11fingerprintEii

[Avi Marcus]

I'm on ubuntu 11.04
I updated a few packages last night.. including libtorrent or libtorrent-rasterbar or something?
Now qbittorent won't load. Launching from console gets:

$ qbittorrent
$ Couldn't set environment variable...
qbittorrent: symbol lookup error: qbittorrent: undefined symbol: _ZN10libtorrent7sessionC1ERKNS_11fingerprintEii

It loaded once but didn't show any of my current torrents (only the rss was intact) but subsequent attempts it didn't load at all.
I tried reinstalling the stable version from the ppa.. I have:

$ qbittorrent --version
qBittorrent v2.9.0

Should I reinstall a specific version of the lib..?

[Christophe Dumez (hydr0g3n)]

You're using libtorrent-rasterbar from a repo and qBittorrent from another repo and you have a version mismatch.
This often happens to users who use getdeb repo and my ppa at the same time.

[Avi Marcus (avi-amarcus)]

OK, so how do I fix it..? I can load libtorrent-rasterbar from your repo, too?

[Один (omun-deactivatedaccount)]

please, change status to new. I'm add you stable & unstable, purge each qbittorrent installation, but error still happen. Version of libtorrent-rasterbar match for version from unstable ppa, qbit - too