I'm implementing a XMLRPC. The server is my computer with IP 192.168.1.5 and listening at port 5000. On the side of the UR3 robot, I have implement the XMLRPC in urcript language. During the program execution I got the error "Type error: a list cannot contain this data type: Variable String" when the XMLRPC is performed. The same error can be reproduced with the following simple code:proxy = rpc_factory( "xmlrpc" , "http://192.168.1.5:5000" ) proxy.getss("/")I have confirmed that the UR3 controller sends the correct XMLRPC to my server which sends the following answer <methodResponse> <params> <param> <value><array><data> <value><int>1</int></value> <value><string>hello</string></value> <value><array><data> </data></array></value> </data></array></value> </param> </params> </methodResponse>The answers is correctly received by the robot's controller, I have confirmed it with Wireshark. Here is a screenshot of the errorAny idea about the reason of the problem? it is not possible to implement a callback for the XMLRPC ??