I can face errors in state property. how can i resolve this errors in flex 4.6?

Question

<?xml version="1.0" encoding="utf-8"?>
<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="118" height="118">
<s:layout>
<s:BasicLayout/>
</s:layout>
<s:states>
<s:State name="X">
<mx:AddChild position="lastChild">
<s:Label x="10" y="10" text="X" fontWeight="bold" fontSize="72" width="98" id="label1" height="98" textAlign="center"/>
</mx:AddChild>
</s:State>
<s:State name="O">
<mx:AddChild basedOn="X">
<mx:SetProperty target="{label1}" name="text" value="O"/>
</mx:AddChild>
</s:State>
<s:State name="OWinner" basedOn="O">
<mx:SetStyle name="backgroundColor" value="#42E303"/>
</s:State>
<s:State name="XWinner" basedOn="X">
<mx:SetStyle name="backgroundColor" value="#42E303"/>
</s:State>
</s:states>
<fx:Script>
<![CDATA[
public var used:Boolean = false;
public function reset():void
used = false;
currentState = "";
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
</s:Group>

Answer 1

Without knowing what the error is, then it might be a little difficult to help you.
But, my guess is that you put items in the States, which you don't need to.
You might want to review the documentation for Create and Apply States.