Virtual server lists profiles incompatible with its protocol.

Hi

I have a VirtualServer(VS_Test), VS_Test has port 21 & configured with TCP Protocol and FTP profile. I am trying to modify the VirtualServer protocol to UDP using the below method. I am getting an exception "Virtual server /Common/Test_VS lists profiles incompatible with its protocol".

I am also getting the same error while adding a UDP profile to the same VirtualServer. I am using iControl11 Java SDK.

I am able to modify the protocol to UDP from GUI Interface. Can anyone please help me understand what i am missing here.

void set_protocol(
    in String[] virtual_servers,
    in [] protocols
);

Exception in thread "main" AxisFault

faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server

faultSubcode:

faultString: Exception caught in LocalLB::urn:iControl:LocalLB/VirtualServer::set_protocol()

Exception: Common::OperationFailed

primary_error_code : 17236118 (0x01070096)

secondary_error_code : 0

error_string : 01070096:3: Virtual server /Common/VS_Test lists profiles incompatible with its protocol.

faultActor:

faultNode:

faultDetail:

Thanks,

Vinay.