How to use the osc.readMessage function in osc

this.udpPort.on("data", function (data, info) {

        // Prepare an error for when the try catch fails, inside the try this variable will get overridden
        var receivedData = {
            address : "error",
            args : ["The header of an OSC packet didn't contain an OSC address or a #bundle string"]
        };
        try {
            receivedData = osc.readMessage(data);
        } catch(e) {
            if(self.debug) {
                console.log(e);
            }
        }
        self.emit("data", receivedData, info, data);
    });