[tracer] Fix missing includes

dumux/porousmediumflow/tracer/localresidual.hh

@@ -26,6 +26,8 @@
 #define DUMUX_TRACER_LOCAL_RESIDUAL_HH
 
 #include <dumux/common/properties.hh>
+#include <dumux/common/parameters.hh>
+#include <dumux/discretization/methods.hh>
 
 namespace Dumux
 {

dumux/porousmediumflow/tracer/volumevariables.hh

@@ -24,6 +24,8 @@
 #ifndef DUMUX_TRACER_VOLUME_VARIABLES_HH
 #define DUMUX_TRACER_VOLUME_VARIABLES_HH
 
+#include <dune/common/fvector.hh>
+
 #include <dumux/common/properties.hh>
 #include <dumux/porousmediumflow/volumevariables.hh>
 

test/porousmediumflow/tracer/constvel/tracertestproblem.hh

@@ -34,6 +34,10 @@
 
 #include "tracertestspatialparams.hh"
 
+#ifndef USEMOLES // default to true if not set through CMake
+#define USEMOLES true
+#endif
+
 namespace Dumux
 {
 /**