* Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade84798.26 make

[David Armour]

hello,
<newbie alert>
trying to upgrade firefox port... from firefox-1.0.4,1 to 
firefox-1.0.6_4,1. using root shell in xfce4 in fbsd 5.3b6.

gmake[1]: Leaving directory `/usr/ports/www/firefox/work/mozilla'
gmake: *** [default] Error 2
*** Error code 2
Stop in /usr/ports/www/firefox.
** Command failed [exit code 1]: /usr/bin/script 
-qa /tmp/portupgrade84798.26 make
** Fix the problem and try again.

would upgrading the portupgrade port (which  pkg_version -v | 
grep -i "<" did list for updating) 'fix the problem', or does 
the error message refer to a command within a script? 

any suggestions, pointers greatly appreciated. balance of error 
message follows:

--->  Build of www/firefox ended at: Sun, 04 Sep 2005 17:33:16 
-0700 (consumed 00:13:04)
--->  Upgrade of www/firefox ended at: Sun, 04 Sep 2005 17:33:16 
-0700 (consumed 00:13:04)
--->  Listing the results (... !:failed)
<snip>   ! www/firefox (firefox-1.0.4,1) (compiler error)
--->  Packages processed: 0 done, 26 ignored, 0 skipped and 1 
failed
--->  Session ended at: Sun, 04 Sep 2005 17:33:16 -0700 (consumed 
00:13:14

what's a "compiler error"? the depth of my ignorance astonishes.

TIA.