apache error_log?

[wlf]

Hi, I installed apache on solaris 10 and failed to start. The error_log(/usr/local/apache2/logs)is :
[Sat Feb 19 15:29:48 2005] [alert] (22)Invalid argument: setgid: unable to set group id to Group 4294967295
[Sat Feb 19 15:29:48 2005] [alert] (22)Invalid argument: setgid: unable to set group id to Group 4294967295
[Sat Feb 19 15:29:48 2005] [alert] (22)Invalid argument: setgid: unable to set group id to Group 4294967295
[Sat Feb 19 15:29:48 2005] [alert] (22)Invalid argument: setgid: unable to set group id to Group 4294967295
[Sat Feb 19 15:29:48 2005] [alert] (22)Invalid argument: setgid: unable to set group id to Group 4294967295
[Sat Feb 19 15:29:49 2005] [notice] Apache/2.0.52 (Unix) DAV/2 configured -- resuming normal operations
[Sat Feb 19 15:29:49 2005] [alert] Child 497 returned a Fatal error...\nApache is exiting!
[Sat Feb 19 15:39:05 2005] [notice] Digest: generating secret for digest authentication ...
[Sat Feb 19 15:39:05 2005] [notice] Digest: done
[Sat Feb 19 15:39:05 2005] [warn] pid file /usr/local/apache2/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run?

Please tell me how to solve the problem? Thanks