Unsupported operand types error on admin/build/path

When I install the Tao theme as my admin theme and try to go to admin/build/path I get this error and backtrace from Xdebug -

(!) Fatal error: Unsupported operand types in /Users/Me/Sites/Drupal6/public/includes/common.inc on line 1592
Call Stack
#	Time	Memory	Function	Location
1	0.0003	65584	{main}( )	../index.php:0
2	0.5547	25846952	menu_execute_active_handler( )	../index.php:18
3	0.5560	25911452	call_user_func_array ( )	../menu.inc:348
4	0.5560	25911532	path_admin_overview( )	../menu.inc:0
5	0.6575	28216688	theme( )	../path.admin.inc:59
6	0.6576	28219296	call_user_func_array ( )	../theme.inc:656
7	0.6576	28219296	tao_pager( )	../theme.inc:0
8	0.6576	28220064	theme( )	../template.php:408
9	0.6576	28222672	call_user_func_array ( )	../theme.inc:656
10	0.6576	28222672	tao_pager_list( )	../theme.inc:0
11	0.6593	28226824	theme( )	../template.php:472
12	0.6593	28229432	call_user_func_array ( )	../theme.inc:656
13	0.6593	28229432	theme_links( )	../theme.inc:0
14	0.6594	28230760	l( )	../theme.inc:1218

I get the error when I use the Rubik theme too and thought it was that at first, but it appears to be an issue with Tao. As soon as I switch to another admin theme I no longer get the error.