using widget for viewer this error

after i used widget for viewer this error


on this function>>>> function set map(value:Map):void;
Description Resource Path Location Type
1046: Type was not found or was not a compile-time constant: Map. IBaseWidget.as /NewMapfinal02-01/src/com/esri/viewer line 112 Flex Problem

Description Resource Path Location Type
Can not resolve a multiname reference unambiguously. Map (from C:\Users\shaabanq\Adobe Flash Builder 4.6\NewMapfinal02-01\src\Map.mxml) and com.esri.ags:Map (from C:\adobeflashbuilder\ArcGIS_Flex\libs\agslib-3.1-2012-12-12.swc(com.esri.ags:Map)) are available. IBaseWidget.as /NewMapfinal02-01/src/com/esri/viewer Unknown Flex Problem


thanks