PDR0708S
Section, Line number, Column number; Function function, Argument argument: The value (value) must be a variable.
What happened: You specified something other than a variable as the value for a function call argument that can only be a variable. Section identifies the section of the rule file that contains the errant function call. number identifies the line and column in which the function was found. function identifies the function call. argument identifies the argument for which value is invalid.
What to do: Specify a variable name as the value for the indicated argument.