<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">Hello &nbsp;all,<div>&nbsp; &nbsp;There is a Problem in &nbsp;my &nbsp;project &nbsp;¡°ERROR:&nbsp;In&nbsp;..\..\VTK&nbsp;5.8.0\vtk-5.8.0\Filtering\vtkDemandDrivenPipeline.cxx,&nbsp;line&nbsp;827</div><div>vtkStreamingDemandDrivenPipeline&nbsp;(0AA3DA80):&nbsp;Input&nbsp;for&nbsp;connection&nbsp;index&nbsp;0&nbsp;on&nbsp;input&nbsp;port&nbsp;index&nbsp;0&nbsp;for&nbsp;algorithm&nbsp;vtkPolyDataNormals(0A9B3498)&nbsp;is&nbsp;of&nbsp;type&nbsp;vtkImageData,&nbsp;but&nbsp;a&nbsp;vtkPolyData&nbsp;is&nbsp;required.¡± &nbsp;How can I solve it . Please gei me a idea or suggest.&nbsp;<br><br></div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>