Quicksilver: AppleScript Action: No handler? Aborting...

[bgarlock]

Running B64(3915), and I put the following AppleScript in ~/Library/
Application Support/Quicksilver/Actions/Add to Tracks.scpt (added
XXXXXX for my username/api token)

{code}
using terms from application "Quicksilver"
        on process text ThisClipping

                set myUsername to "XXXXXX"
                set myToken to "XXXXXX"
                set myContextID to 5 (* @Computer *)

                tell application 
"http://garlockprintingtracks.tklapp.com/backend/
api"
                        set returnValue to call xmlrpc {method name:"NewTodo", 
parameters:
{myUsername, myToken, myContextID, ThisClipping}}
                end tell
                tell application "Quicksilver"
                        show notification "Tracks: action added."
                end tell
        end process text
end using terms from
{code}



And when I try to use that AppleScript action, nothing happens and I
just get this in the console log:


2/10/12 10:26:14.452 AM Quicksilver: AppleScript Action: No handler?
Aborting...



Any ideas how I can further troubleshoot this?

Many thanks,

Bruce