[phenixbb] error in the newer version of phenix

[Maia Cherney]

Hi phenixers,

I just installed the version phenix-1.7-650 on ubuntu 9.4 and tried a 
test run. My previous version runs fine. The new version gives me this error

=============================== refinement start 
==============================

Traceback (most recent call last):
  File "/usr/local/phenix-1.7-650/phenix/phenix/command_line/refine.py", 
line 11, in <module>
    command_line.run(command_name="phenix.refine", args=sys.argv[1:])
  File 
"/usr/local/phenix-1.7-650/phenix/phenix/refinement/command_line.py", 
line 89, in run
    call_back_handler=call_back_handler)
  File "/usr/local/phenix-1.7-650/phenix/phenix/refinement/driver.py", 
line 1207, in run
    call_back_handler       = call_back_handler)
  File 
"/usr/local/phenix-1.7-650/phenix/phenix/refinement/strategies.py", line 
220, in refinement_machine
    xray_structure = model.xray_structure,)
  File 
"/usr/local/phenix-1.7-650/phenix/phenix/refinement/strategies.py", line 
124, in extract_from_pdb_header
    xray_structure = xray_structure)
  File "/usr/local/phenix-1.7-650/cctbx_project/mmtbx/f_model.py", line 
327, in __init__
    twin_law_xyz = sgtbx.rt_mx(symbol=self.twin_law, r_den=12, t_den=144)
RuntimeError: cctbx Error: Parse error: unexpected character:
  NULL
  ^
Please, take a look at the error and advise me how to fix it.

Maia