Relevance substitution failed error1

Hi,

I am trying to set registry value through task but it is giving Relevance substitution failed.

action parameter query “Relay1” with description “Please enter the URL to the download mirror directory for Relay1” and with default value “http://relay name:52311/bfmirror/downloads/”

regset “HKEY_LOCAL_MACHINE\SOFTWARE\BigFix\EnterpriseClient\Settings\Client__Relay_Control_Server1” “value”=“{parameter “Relay1” of action}”

client restart

pls help me with this