OpenFOAM-v1912 with ParaView-5.10.1 with error: Cannot use ParaView reader module library (PVFoamReader) The PV_PLUGIN_PATH environment value is not set

I've installed OpenFOAM-v1912 in Linux desktop environment with ParaView version 5.10.1 along with Aerosolved library.

I tried to test run the cavity tutorial from foam, but failed with errors shown as: Cannot use ParaView reader module library (PVFoamReader) The PV_PLUGIN_PATH environment value is not set

May I know why? The steps were entering directory cavity in $FOAM_RUN directory, then blockMesh then paraFoam & and the errors popped up as shown in the figure below.

It does linking to the ParaView, but with no figure there.

May I know where I did wrongly? Please correct me.

Thank you in advanced.

Regards, Cindy