Wireshark-dev: Re: [Wireshark-dev] tshark run during build with plugins gives register_subtree_
From: Bill Meier <[email protected]>
Date: Thu, 10 Feb 2011 15:42:00 -0500
On 2/10/2011 3:16 PM, Turner, Jay wrote:

wireshark-gtk2\tshark.exe -G |
perl doc\dfilter2pod.pl doc\wireshark-filter.pod.template>
doc\wireshark-filter.pod a GUI Error dialog appeared saying: ** ERROR
**: register_subtree_array: subtree item type (ett_...) not -1 ! This
is a development error: Either the subtree item type has already been
assigned or was not initialized to -1.

Just as the message says: either there's an ett... which hasn't been initialized to -1 or an ett.... is being registered twice.
Unfortunately the message doesn't say which ett, but it presumab;y has 
to be in one of your plugins ....    :)