After installing Wireshark 1.8.1 for "OS X 10.6 and later Intel 64-bit" last night, tshark coredumps with:
Duplicate protocol name "Coseventcomm Dissector Using GIOP API"! This might be caused by an inappropriate plugin or a development error.
The only plugin I have installed is cloudshark 1.0.1-162, in ~/.wireshark/plugins/. Removing that doesn't make any difference.
I've searched up all over for "plugins/giop" as suggested in an old post (http://www.wireshark.org/lists/wireshark-dev/201206/msg00014.html), but that turns up nothing close.
