Convert error from CVS

[David I.]

I was trying to use the convert extension to convert a project from CVS
and I get the following error. I have no idea where to start debugging
this. Any ideas?

cloning branch #CVSPS_NO_BRANCH to BRANCH_version-5_0_1
Traceback (most recent call last):
  File "/IMAT/lib/python/mercurial/dispatch.py", line 45, in _runcatch
    return _dispatch(ui, args)
  File "/IMAT/lib/python/mercurial/dispatch.py", line 348, in _dispatch
    ret = _runcommand(ui, options, cmd, d)
  File "/IMAT/lib/python/mercurial/dispatch.py", line 401, in
_runcommand
    return checkargs()
  File "/IMAT/lib/python/mercurial/dispatch.py", line 357, in checkargs
    return cmdfunc()
  File "/IMAT/lib/python/mercurial/dispatch.py", line 342, in <lambda>
    d = lambda: func(ui, *args, **cmdoptions)
  File "/IMAT/lib/python/hgext/convert/__init__.py", line 380, in
convert
    c.convert()
  File "/IMAT/lib/python/hgext/convert/__init__.py", line 270, in
convert
    self.copy(c)
  File "/IMAT/lib/python/hgext/convert/__init__.py", line 231, in copy
    self.dest.setbranch(commit.branch, pbranch, parents)
  File "/IMAT/lib/python/hgext/convert/hg.py", line 100, in setbranch
    stream=True)
  File "/IMAT/lib/python/mercurial/hg.py", line 214, in clone
    revs = [src_repo.lookup(r) for r in rev]
  File "/IMAT/lib/python/mercurial/localrepo.py", line 389, in lookup
    n = self.changelog._match(key)
  File "/IMAT/lib/python/mercurial/revlog.py", line 825, in _match
    r = self.rev(node)
  File "/IMAT/lib/python/mercurial/revlog.py", line 519, in rev
    raise LookupError(_('%s: no node %s') % (self.indexfile, hex(node)))
LookupError: 00changelog.i: no node
c8efdf8b65348aee8a666bf43d6ebb392852df8e
abort: 00changelog.i: no node c8efdf8b65348aee8a666bf43d6ebb392852df8e!

>hg -v
Mercurial Distributed SCM (version 0.9.5)

cvsps version 2.1

>python --version
Python 2.5.1

>uname -a
Linux fwjsfimat15 2.4.21-53.EL #1 SMP Wed Nov 14 03:46:06 EST 2007
x86_64 x86_64 x86_64 GNU/Linux

David 
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