shap转换格网问题

<P>我在转换格网数据时出现下面的错误:</P>
<P  align=left>An error was encountered while executing spatial_FeatureToRaster.<p></p></P>
<P  align=left>("esriGeoAnalyst.GridEngine") Could not open raster dataset from file<p></p></P>
<P  align=left>Failed to execute (FeatureToRaster_1).<p></p></P>
<P  align=left>End Time: Wed May 02 00:50:12 2007 (Elapsed Time: 1.00 secs)<p></p></P>
<P>请帮忙解决一下.</P>