On Fri, Jun 21, 2013 at 09:47:22PM -0400, Yves S. Garret wrote: > If I'm writing about this in the wrong place, please let me know. However, > when I > uninstalled rtorrent and then re-installed it, I kept getting this very > same error: Where did you get rtorrent from? It's not part of the default CentOS packages. You might want to ask on a list related to where you got the package from. > $ rtorrent foobar.torrent > rtorrent: symbol lookup error: rtorrent: undefined symbol: > _ZN7torrent10ThreadBase8m_globalE You have the wrong version of libraries installed; possibly libcurl. -- rgds Stephen