# XMLRPC error in RT-Interface

**URL:** <https://forum.universal-robots.com/t/xmlrpc-error-in-rt-interface/12165>\
**Category:** URScript\
**Created:** [February 5, 2021, 9:11am UTC](https://forum.universal-robots.com/t/xmlrpc-error-in-rt-interface/12165 "2021-02-05T09:11:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![anon21334873](https://avatars.discourse-cdn.com/v4/letter/a/41988e/32.png) [@anon21334873](https://forum.universal-robots.com/u/anon21334873)\
**Post date:** [February 5, 2021, 9:11am UTC](https://forum.universal-robots.com/t/xmlrpc-error-in-rt-interface/12165/1 "2021-02-05T09:11:34Z")

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Hi,

I would like to use a XMLRPC in the RT-Interface to connect to a service of an URCap.

Using this command:

skfslidekit = rpc\_factory(“xmlrpc”, “[http://127.0.0.1:30405/RPC2](http://127.0.0.1:30405/RPC2)”)

If I use it in an UR-Programm with a UR-Script Command, it works perfectly fine.  
But if I use it in the RT-Interface i get the following error:

“Compile-Error: ‚XMLRPS https‘ not supported” as a popup window.

Key-facts:

- UR10 CB3
- Polyscope 3.14

Does anyone know about this error?