[flexcoders] sending a Flex Object() to a cfc

[btroop202]

I am trying to send a flex Object to a cfc but getting a error 
message. 
So if I define my object: 
var objectName:Object = new Object(); 
objectName.field1 = 'someData'; 
objectName.field2 = 'someData'; 
objectName.field3 = 'someData'; 

Then in the cfc I am looking for a struct, but I get this error 
message : coldfusion.runtime.MissingArgumentException: The parameter 
objectName to function cfcName is required but was not passed in. 

So I would think that this should be very simple but having a hard 
time with it. 

Thanks