Error after completion of simulation

[anantatapase]

After the completion of simulation in ubuntu there was error as
IOError: [Errno 13] Permission denied: 'results.pickle'
any help why this error occurs?

[Lorenzo Saino]

I can't tell exactly without seeing the actual command line parameters you used. However, with all probability, this error occurred because the results file that you specified in the --results arguments either refers to a directory that does not exist or your user does not have write permission on that directory.