[as3]Error with video class

programming flash
1

When I try and use the video class in as3, I get this error:

Error #2044: Unhandled AsyncErrorEvent:. text=Error #2095: flash.net.NetStream was unable to invoke callback onMetaData. error=ReferenceError: Error #1069: Property onMetaData not found on flash.net.NetStream and there is no default value.
at com.infinity.components::ISMPlayer$iinit()
at Timeline0_d569d4230dd2142a716fd8ed9b47926/::frame1()

Any ideas?