why vla-get-Coordinate can't work？

[dream0001]

(vla-get-Coordinate (vlax-ename->vla-object (car(entsel))) 1) return： ; 错误: ActiveX æœ务器返回错误: 未知å称: Coordinates （error,activex retuen error：unknow name：coordinates）

 

[Luis Esquivel]

make sure your selection any of:

object

3DPoly, Leader, LightweightPolyline, Point, PolyfaceMesh, PolygonMesh, Polyline, Solid, Trace The object or objects this property applies to.

(vla-get-Coordinate (vlax-ename->vla-object (car(entsel))) 1) return:
; ??: ActiveX ???????: ????: Coordinates
(error,activex retuen error:unknow name:coordinates)