Fix compile error.

library/Demos/TensorRegions/CMakeLists.txt

@@ -3,7 +3,7 @@ ADD_NEKTAR_EXECUTABLE(TensorBwdTrans
 ADD_NEKTAR_EXECUTABLE(TensorIProductWRTBase
     COMPONENT demos DEPENDS TensorRegions SOURCES IProductWRTBase.cpp)
 
-ADD_NEKTAR_EXECUTABLE(TensorDomain
-    COMPONENT demos DEPENDS TensorRegions SOURCES Domain.cpp)
+ADD_NEKTAR_EXECUTABLE(TensorProject
+    COMPONENT demos DEPENDS TensorRegions SOURCES Project.cpp)
 
-ADD_NEKTAR_TEST(BwdTransM0)
\ No newline at end of file
+ADD_NEKTAR_TEST(BwdTransM0)

library/Demos/TensorRegions/Project.cpp

@@ -88,9 +88,10 @@ int main(int argc, char *argv[])
         cout << endl;
     }
     
-    //TensorRegions::TensorRegionStorage diff = *str - *stp;
+    TensorRegions::TensorRegionStorageSharedPtr diff = tr.AllocateStorage(TensorRegions::TensorRegionStorage::ePhys);
+    *diff = *str - *stp;
     cout << tr.Integral(*stp) << endl;
     cout << tr.Integral(*str) << endl;
-    //cout << tr.Integral(diff) << endl;
+    cout << tr.Integral(*diff) << endl;
     return 0;
-}
\ No newline at end of file
+}