[racket] xmlrpc with racket problem

Hello

many thanks for the quick help.
But I still have a problem

Here is my code:

Server:
 (define (add x y) (+ x y))
  (define xml-rpc-adder
    (make-handle-xml-rpc
     (hasheq 'math.add add
             'math.+ +
             'addFun add)))
  (define (run-server!)
    (serve/servlet xml-rpc-adder
                   #:port 8888
                   #:servlet-path "/servlets/rpc/xmlrpc.rkt"
                   #:command-line? #t))

Client:
  (define adder
      (xml-rpc-server (string->url "
http://localhost:8888/servlets/rpc/xmlrpc.rkt")))
    (define math.add (adder 'math.add))
    (math.add 3 4)

 And the answer here:
Received invalid XMLRPC response (html (head (title Servlet Error) (link (@
(rel stylesheet) (href /error.css)))) (body (div (@ (class section)) (div (@
(class title)) Exception) (p The application raised an exception with the
message: (pre dynamic-require: name is not provided: 'interface-version by
module: #<resolved-module-path:"C:\Program Files
(x86)\Racket\collects\web-server\default-web-root\htdocs\servlets\rpc\xmlrpc.rkt">))
(p Stack trace: (pre <unknown procedure> at:
  line 121, column 2, in file C:\Program Files
(x86)\Racket\collects\web-server\servlet\setup.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
hash-ref! at:
  line 399, column 13, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 57, column 2, in file C:\Program Files
(x86)\Racket\collects\web-server\dispatchers\dispatch-servlets.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
select-handler/no-breaks at:
  line 173, column 2, in file C:\Program Files
(x86)\Racket\collects\racket\private\more-scheme.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
<unknown procedure> at:
  line 1445, column 3, in file C:\Program Files
(x86)\Racket\collects\racket\contract\private\arrow.rkt
connection-loop at:
  line 62, column 2, in file C:\Program Files
(x86)\Racket\collects\web-server\private\dispatch-server-unit.rkt
)))))


Where is my mistake? :)


> Cheers,
> Tobi
>
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