Nginx can't execute perl-fcgi?

Configure perl-fcgi on nginx.
Sourcecode compile FCGI、IO、IO-String、IO-All、Getopt,and install
them.
insert perl-cgi in nginx.conf,and start perl-cgi startscript.
But my web visit the cgi,it says that:

No such CGI app - /web/cgi-bin/test.cgi may not exist or is not executable by this process.
I test where havn’t a cgi file,then visit the doesn’t exist file.
It says that:

No such CGI app - /xxxx/xxxx/test.cgi may not exist or is not executable by this process.
yet.

How I can fix it?(I think my CGI does’nt execute.)

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,121283,121283#msg-121283

It says that,now:

Error: CGI app returned no output - Executing /xxxxx/xxxxx/cgi-bin/install.cgi failed !

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,121283,121340#msg-121340