Use of Reverse Polish Notation in WorldScript

Hello, I am attempting to use Reverse Polish Notation within my WorldScript as
a set of parameters for activating a simobject using the “#condition” format.
Is this possible? When I try to compile the script, I receive the following
error: “SPBCompiler | Failed to compile ‘C:\MSFS
SDK\Projects\TEST\PackageSources\Scenarii\test\test1\test1.xml’ to binary”

Yes, you can use it in three elements: Property
and ExecuteRPNAction.