How to frealign_calc_projection

Dear all,
I am new to frealign, so I am following a Methods in Enzymology 2016 paper. I am running in MODE3 and I want to look at matching projections. When I run frealign_calc_projections from a working directory I get:

$frealign_calc_projections

ERROR: particle parameter file not found.
Terminating...

What am I doing wrong?

Thanks!

--
Mike Kopylov,
PhD candidate, Dr. Stroupe group
Institute of Molecular Biophysics, Florida State University