I am working on a project which was previously working with vtk5.8 . I have replaced header files and libraries in my project. Build is successful but when I try to switch to 3D mode I get following error. Please guide me about this error.
ERROR: In C:\VTK\VTK-9.1.0.rc2\Common\ExecutionModel\vtkDemandDrivenPipeline.cxx, line 668
vtkCompositeDataPipeline (19F77C08): Input port 0 of algorithm vtkDataSetMapper(04786590) has 0 connections but is not optional.