missing site.config gives vague error

[GoogleCodeExporter]

extra switch pattern with no body
    while executing
"switch -glob -- "[dict get $r -host],[dict get $r -path]/" { {
        Http Redir $r [dict get $r -path]/
    }
        default {
        NotFound $r
        }
    }"
    (procedure "trailing" line 2)
    invoked from within
"trailing $r"
    (procedure "::Dispatcher::do" line 33)
    invoked from within
"::Dispatcher do REQUEST $r1"

Original issue reported on code.google.com by mcc...@gmail.com on 24 May 2012 at 12:22