ENH: Better error handling
ENH: Better error handling

msmolens/VTK,sankhesh/VTK,collects/VTK,johnkit/vtk-dev,mspark93/VTK,arnaudgelas/VTK,sankhesh/VTK,SimVascular/VTK,cjh1/VTK,sgh/vtk,aashish24/VTK-old,collects/VTK,biddisco/VTK,gram526/VTK,johnkit/vtk-dev,candy7393/VTK,sumedhasingla/VTK,ashray/VTK-EVM,candy7393/VTK,demarle/VTK,jmerkow/VTK,jeffbaumes/jeffbaumes-vtk,daviddoria/PointGraphsPhase1,sankhesh/VTK,mspark93/VTK,arnaudgelas/VTK,demarle/VTK,naucoin/VTKSlicerWidgets,sumedhasingla/VTK,candy7393/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,SimVascular/VTK,johnkit/vtk-dev,jeffbaumes/jeffbaumes-vtk,demarle/VTK,mspark93/VTK,jmerkow/VTK,aashish24/VTK-old,sankhesh/VTK,keithroe/vtkoptix,sumedhasingla/VTK,Wuteyan/VTK,Wuteyan/VTK,Wuteyan/VTK,mspark93/VTK,hendradarwin/VTK,demarle/VTK,spthaolt/VTK,gram526/VTK,candy7393/VTK,gram526/VTK,demarle/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,gram526/VTK,candy7393/VTK,SimVascular/VTK,keithroe/vtkoptix,ashray/VTK-EVM,sankhesh/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,mspark93/VTK,biddisco/VTK,demarle/VTK,Wuteyan/VTK,keithroe/vtkoptix,daviddoria/PointGraphsPhase1,msmolens/VTK,sgh/vtk,spthaolt/VTK,cjh1/VTK,keithroe/vtkoptix,Wuteyan/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,collects/VTK,hendradarwin/VTK,gram526/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,gram526/VTK,cjh1/VTK,spthaolt/VTK,SimVascular/VTK,jmerkow/VTK,jeffbaumes/jeffbaumes-vtk,spthaolt/VTK,keithroe/vtkoptix,jmerkow/VTK,msmolens/VTK,cjh1/VTK,mspark93/VTK,arnaudgelas/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,daviddoria/PointGraphsPhase1,jeffbaumes/jeffbaumes-vtk,hendradarwin/VTK,sgh/vtk,msmolens/VTK,msmolens/VTK,jmerkow/VTK,Wuteyan/VTK,arnaudgelas/VTK,jeffbaumes/jeffbaumes-vtk,collects/VTK,collects/VTK,naucoin/VTKSlicerWidgets,jmerkow/VTK,demarle/VTK,ashray/VTK-EVM,mspark93/VTK,candy7393/VTK,daviddoria/PointGraphsPhase1,msmolens/VTK,keithroe/vtkoptix,cjh1/VTK,collects/VTK,ashray/VTK-EVM,sankhesh/VTK,arnaudgelas/VTK,arnaudgelas/VTK,ashray/VTK-EVM,johnkit/vtk-dev,msmolens/VTK,johnkit/vtk-dev,aashish24/VTK-old,berendkleinhaneveld/VTK,SimVascular/VTK,aashish24/VTK-old,ashray/VTK-EVM,biddisco/VTK,sgh/vtk,spthaolt/VTK,naucoin/VTKSlicerWidgets,sumedhasingla/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,ashray/VTK-EVM,biddisco/VTK,jeffbaumes/jeffbaumes-vtk,biddisco/VTK,berendkleinhaneveld/VTK,ashray/VTK-EVM,candy7393/VTK,johnkit/vtk-dev,Wuteyan/VTK,sgh/vtk,mspark93/VTK,johnkit/vtk-dev,keithroe/vtkoptix,biddisco/VTK,spthaolt/VTK,SimVascular/VTK,daviddoria/PointGraphsPhase1,msmolens/VTK,hendradarwin/VTK,SimVascular/VTK,jmerkow/VTK,biddisco/VTK,candy7393/VTK,spthaolt/VTK,aashish24/VTK-old,aashish24/VTK-old,sumedhasingla/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,hendradarwin/VTK,SimVascular/VTK,hendradarwin/VTK,sgh/vtk,demarle/VTK,hendradarwin/VTK,cjh1/VTK,gram526/VTK