upgrade error

[Frank J. R. Hanstick]

Hello,
	In an attempt to upgrade the ports, the following error occurred:

		ncursesw (5.8_0 is installed; the port was not found in the port  
index)
		py26-xml (0.8.4_0 is installed; the port was not found in the port  
index)
		DEBUG: epoch: in tree: 0 installed: 0 DEBUG: docbook-xml 5.0_2  
exists in the ports tree
		DEBUG: docbook-xml 5.0_0 is the latest installed DEBUG: docbook-xml  
5.0_0 is active
		DEBUG: Merging existing variants '' into variants DEBUG: new fully  
merged portvariants:
		DEBUG: Changing to port directory: /opt/local/var/macports/sources/ 
rsync.macports.org/release/ports/textproc/docbook-xml
		DEBUG: OS darwin/9.8.0 (Mac OS X 10.5) arch powerpc
		DEBUG: org.macports.load registered provides 'load', a pre-existing  
procedure. Target override will not be provided
		DEBUG: org.macports.distfiles registered provides 'distfiles', a pre- 
existing procedure. Target override will not be provided
		DEBUG: bad index "12-2": must be integer or end?-integer?
			while executing
		"lindex ${docbook-xml-versions} [llength ${docbook-xml-versions}]-2"
			invoked from within
		"version [lindex ${docbook-xml-versions} [llength ${docbook-xml- 
versions}]-2]"
			(file "Portfile" line 41)
			invoked from within
		"source Portfile"
			invoked from within
		"$workername eval source Portfile"
			(procedure "mportopen" line 47)
			invoked from within
		"mportopen $porturl [array get interp_options] [array get variations]"
		Error: Unable to open port: bad index "12-2": must be integer or  
end?-integer?
		To report a bug, follow the instructions in the guide:
			http://guide.macports.org/#project.tickets

	anyone have any idea what happened and where to report this?

Frank J. R. Hanstick
trog24 at comcast.net