Hello. I try to get renderman work perfectly in Houdini.

This is my problem. I try to create Renderman Shader, but I can not preview in SHOPs.

Then houdini console said CreateProcess failed for ‘prman.exe’

Plus dialog box came our and it said "unable to run Renderman Application ‘prman.exe’

I thought I did not set up pixar renderman pro server 12.5 right, but When I Go Outputs and setup renderman. And hit render, then it does render the scene.

I think I have to set Environment Variables to let the Houdini know where the prman.exe is. So please help me how I can set up Renderman 12.5 properly.

P.S. I'm really begginer of doing this kind of work, so if you can explain to me
exactly what to do, I would be really appriciated. Thank you