ENH: More informative error messages.
ENH: More informative error messages.

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