runTimePostProcessing functionality is not available in precompiled packages of v1912.

I will note how to compile OFv1912 with runTimePostProcessing.

Refs:

cd $WM_THIRD_PARTY_DIR
makeParaView

check the VTK version with the following command.

cat ParaView-v5.6.3/VTK/CMake/vtkVersion.cmake

If the version is 8.2.0, create a link with the name of VTK-8.2.0.

ln -s ParaView-v5.6.3/VTK/ VTK-8.2.0

Now, compile the VTK.

makeVTK

Then, prepare for the OF compilation.

wmRefresh
cd $WM_PROJECT_DIR
export ParaView_DIR=$WM_THIRD_PARTY_DIR/ParaView-v5.6.3
export VTK_DIR=$WM_THIRD_PARTY_DIR/build/linux64Gcc/VTK-8.2.0/

Finally, compile OpenFOAM-v1912.

foam
./Allwmake -j -s -l

You can check the functionality with tutorials/incompressible/simpleFoam/windAroundBuildings.

You can build ParaView 5.6.3, including with the ability to use Python and MPI. Options are same as explained here at OpenFOAM WiKi.