Add missing include files

diff --git a/include/deal.II/matrix_free/operators.h b/include/deal.II/matrix_free/operators.h
index 01f1c924fb6c16040d39fcd144aa5fc23d635673..a3aef589b2c6e60b51f13293efd085cabea41d3f 100644 (file)
--- a/include/deal.II/matrix_free/operators.h
+++ b/include/deal.II/matrix_free/operators.h
@@ -20,7 +20,11 @@
 
 #include <deal.II/base/exceptions.h>
 #include <deal.II/base/vectorization.h>
+#include <deal.II/base/subscriptor.h>
 
+#include <deal.II/lac/la_parallel_vector.h>
+#include <deal.II/multigrid/mg_constrained_dofs.h>
+#include <deal.II/matrix_free/matrix_free.h>
 #include <deal.II/matrix_free/fe_evaluation.h>