Add missing 'typename' keyword

dune/microstructure/prestrainedMaterial.hh

@@ -690,7 +690,7 @@ Dune::FieldMatrix<double,6,6> setupPhase(const std::string phaseType, Python::Mo
         // VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{80,80,80});
         VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},nElements);
         
-        using GridViewVTK = VTKGridType::LeafGridView;
+        using GridViewVTK = typename VTKGridType::LeafGridView;
         const GridViewVTK gridView_VTK = grid_VTK.leafGridView();
         
         auto scalarP0FeBasis = makeBasis(gridView_VTK,lagrange<0>());