[Zope] help me!!!!

Dear: engineer I install zope on Linux was succeed . But when I start it the operating system cue : Traceback (innermost last): File /home/chrism/Zope-2.6.2-linux2-x86/z2.py, line 843, in ? SystemExit: A user was not specified to setuid to; fix this to start as root (see doc/SETUID.txt) What I will do? please help me ! Thanks a lot ! Love Zope :Link