Flex 3.4 BlazeDS AMF troubleshooting process

Pass from the foreground to the background data handling, such problems are generally unsupported data types BlazeDS caused. But my program without any type of problem data.

Also, when you first do when you can insert data completed normally, but when the time update, the following error appeared this explanation, the data coming from the server in question being addressed .... ....

2009.10.15

14: 20: 59,484 INFO [STDOUT] [BlazeDS] AMF of the type Unknown '23'.
flex.messaging.io.UnknownTypeException: Unknown AMF of the type '23'.
AT flex.messaging.io.amf.Amf3Input.readObjectValue (Amf3Input.java:219)
AT flex.messaging.io.amf. Amf3Input.readObject (Amf3Input.java:132)
AT flex.messaging.io.amf.Amf3Input.readScriptObject (Amf3Input.java:473)
AT flex.messaging.io.amf.Amf3Input.readObjectValue (Amf3Input.java:153)
AT Flex .messaging.io.amf.Amf3Input.readObject (Amf3Input.java:132)
AT flex.messaging.io.amf.Amf3Input.readArray (Amf3Input.java:326)
at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:157)
at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:473)
at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:153)
at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
at flex.messaging.io.amf.Amf3Input.readArray(Amf3Input.java:351)
at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:157)
at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:473)
at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:153)
at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:132)
at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:135)
at flex.messaging.io.amf.Amf0Input.readArrayValue(Amf0Input.java:326)
at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:139)
at flex.messaging.io.amf.Amf0Input.readObject(Amf0Input.java:95)
at flex.messaging.io.amf.AmfMessageDeserializer.readObject(AmfMessageDeserializer.java:226)
at flex.messaging.io.amf.AmfMessageDeserializer.readBody(AmfMessageDeserializer.java:205)
at flex.messaging.io.amf.AmfMessageDeserializer.readMessage(AmfMessageDeserializer.java:125)