Hi Yuri, I just fixed this problem. Please use next available nightly build (which will be available in a day or two): http://www.phenix-online.org/download/nightly_builds.cgi version dev-780 and up. Once again, sorry for the problem. Pavel. On 5/28/11 1:35 PM, Yuri wrote:

Hello everyone, Keep getting an error when I try to run polygon to validate my model. Here is what i get:

RuntimeError : lbfgs error: Line search failed: The step is at the lower bound stpmin(). Traceback: File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/libtbx/thread_utils.py", line 223, in run return_value = self._target(self._args, self._kwargs, self._c)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/libtbx/runtime_utils.py", line 58, in __call__ result = self.target()

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/phenix/phenix/validation/analyze_all.py", line 358, in __call__ result = validation_result(params, tmp_dir)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/phenix/phenix/validation/analyze_all.py", line 139, in __init__ return_fmodel_and_pdb=True)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/mmtbx/model_vs_data.py", line 806, in run mvd_obj.collect(model_vs_data = show_model_vs_data(fmodel))

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/mmtbx/model_vs_data.py", line 556, in show_model_vs_data sigmaa_plot = fmodel.sigmaa().show_short(silent=True)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/mmtbx/f_model.py", line 1464, in sigmaa use_sampling_sum_weights = p.use_sampling_sum_weights)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/mmtbx/scaling/sigmaa_estimation.py", line 191, in __init__ w_obs=w_obs)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/scitbx/math/chebyshev_lsq_fit.py", line 72, in __init__ self.minimizer = lbfgs.run(target_evaluator=self)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/scitbx/lbfgs/__init__.py", line 258, in run log)

File "/home/local/UFAD/yuri.pompeu/Desktop/PHENIX_installation/phenix-1.7.1-743/cctbx_project/scitbx/lbfgs/__init__.py", line 143, in run_c_plus_plus if (minimizer.run(x, f, g)): continue

Thank you