When trying to run the peach agent, I'm getting "ImportError: No module named cPeach"

root@xxxxx:/pentest/fuzzers/peach# python ./peach.py -a

] Peach 2.2.1 Runtime
] Copyright (c) Michael Eddington

Traceback (most recent call last):
  File "./peach.py", line 371, in <module>
    from Peach.Engine import *
  File "/pentest/fuzzers/peach/Peach/__init__.py", line 41, in <module>
    import Generators, Publishers, Transformers
  File "/pentest/fuzzers/peach/Peach/Publishers/__init__.py", line 37, in <module>
    import file, sql, stdout, tcp, udp, com, process, http, icmp, raw, remote
  File "/pentest/fuzzers/peach/Peach/Publishers/remote.py", line 36, in <module>
    from Peach.Engine.engine import Engine
  File "/pentest/fuzzers/peach/Peach/Engine/engine.py", line 755, in <module>
    from Peach.Engine.parser import *
  File "/pentest/fuzzers/peach/Peach/Engine/parser.py", line 53, in <module>
    from Peach.Engine.dom import *
  File "/pentest/fuzzers/peach/Peach/Engine/dom.py", line 3523, in <module>
    import cPeach
ImportError: No module named cPeach
any ideas ?