Error while hitting paraFoam command in terminal in OpenFOAMv2012
 

Hi,
I just have installed OPENFOAMv2012 in my ubnuntu 20.04 operating system. I have done it using the steps followed by the following website :

https://www.cemf.ir/how-to-install-o...ack-on-ubuntu/

Installation was done successfully. But while running tutorial, after hitting paraFoam command in terminal, It shows

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Invalid $PV_PLUGIN_PATH and -plugin-path= not defined
No supplementary ParaView/OpenFOAM reader modules
Using builtin reader: paraFoam -vtk

Created temporary 'pitzDaily.foam'
/home/souravhossain/OpenFOAM/OpenFOAM-v2012/bin/paraFoam: 420: paraview: not found

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I was not able to figure it out. Please help me out.

Thanks in advance.