With some torrentfiles I get an annoying message “Could not open file xyz/abc: No such file or directory”. To solve this problem just force rtorrent to recreate the file(s). Just press this key sequence:
1. CTRL-K (Stop torrent)
2. CTRL-E (Set the ‘create/resize queued’ flags on all files in a torrent. This is necessary if the underlying files in a torrent have been deleted or truncated, and thus rtorrent must recreate them.
3. CTRL-S (Start the download)