instiki and lighttpd

tarting lighttpd: 2007-03-05 08:07:28: (mod_fastcgi.c.988) execve

failed for: /srv/rails/instiki/public/dispatch.fcgi No such file or
directory
                                                           [  OK  ]
[rootpm instiki]# 2007-03-05 08:07:28: (mod_fastcgi.c.1014) the

fastcgi-backend /srv/rails/instiki/public/dispatch.fcgi failed to start:
2007-03-05 08:07:28: (mod_fastcgi.c.1018) child exited with status 2
/srv/rails/instiki/public/dispatch.fcgi
2007-03-05 08:07:28: (mod_fastcgi.c.1021) if you try do run PHP as

FastCGI backend make sure you use the FastCGI enabled version.
You can find out if it is the right one by executing 'php -v' and it
should display '(cgi-fcgi)' in the output, NOT (cgi) NOR (cli)

For more information check
http://www.lighttpd.net/documentation/fastcgi.html#preparing-php-as-a-fastcgi-program

2007-03-05 08:07:28: (mod_fastcgi.c.1026) If this is PHP on Gentoo add
fastcgi to the USE flags
2007-03-05 08:07:28: (mod_fastcgi.c.1322) [ERROR]: spawning fcgi failed.
2007-03-05 08:07:28: (server.c.848) Configuration of plugins failed.

Going down.

Here is my configuration
$HTTP["host"] =~ "^(wiki.mydomain.com)$"  {

        server.document-root

 = "/srv/rails/instiki/public"


        fastcgi.server = ( ".fcgi" =>
                               ( "localhost" =>
                                 (
                                   "socket" => "/tmp/instiki.fcgi.socket",

                                   "bin-path" => server.document-root +"/dispatch.fcgi",
                                   "bin-environment" => ( "RAILS_ENV" =>";production" )

                                 )
                               )
                            )
}