[Clas_offline] scons stop working

[Nikolai Pivnyuk]

Hi,
I am not able to compile my program. Sconstruct, as it was available so far,
stop working immediately after transition to ifarm180i (centos77).
Is there anybody who can help me , and probably others who work on clas6
data ?

See below (in my previous email) the system error to
>scos <CR>

Thanks in advance

Nikolai
=====================================

another bad luck
help please
----------------
pivnyuk at ifarm1801.jlab.org> date
Mon Feb 24 22:52:57 EST 2020
pivnyuk at ifarm1801.jlab.org> scons
scons: Reading SConscript files ...
ImportError: No module named build_system:
  File "/u/home/pivnyuk/g10/mc/qf_2020/fsgen_gsim_gpp_recsis/sconstruct",
line 1:
    from build_system import environment
pivnyuk at ifarm1801.jlab.org>
pivnyuk at ifarm1801.jlab.org>
pivnyuk at ifarm1801.jlab.org> more sconstruct
from build_system import environment
from glob import glob

env = environment.env(deps=['clas6'])
env.load_dependency({'clas6' : ['default_libs', 'recsis_libs']})

env.AppendUnique(LIBS = ['g10pcor'])

sourcelist = glob('*.F')
prog = env.program(target='fsgen.exe', source=sourcelist)

env.return_from_sconstruct(prog)
pivnyuk at ifarm1801.jlab.org>