Hi, I wonder if it's a known problem. I had a quick look through the mailing list, but didn't see any relevant messages: An extraction of a workflow from a history breaks on the bwa step: Error - <type 'exceptions.ValueError'>: invalid literal for int() with base 10: 'False' URL: http://galaxy.hpc.ufl.edu/workflow/build_from_current_history File '/galaxy/run/prod/eggs/Paste-1.6-py2.6.egg/paste/exceptions/errormiddleware.py', line 143 in __call__ app_iter = self.application(environ, start_response) File '/galaxy/run/prod/eggs/Paste-1.6-py2.6.egg/paste/recursive.py', line 80 in __call__ return self.application(environ, start_response) File '/galaxy/run/prod/lib/galaxy/web/framework/middleware/remoteuser.py', line 91 in __call__ return self.app( environ, start_response ) File '/galaxy/run/prod/eggs/Paste-1.6-py2.6.egg/paste/httpexceptions.py', line 632 in __call__ return self.application(environ, start_response) File '/galaxy/run/prod/lib/galaxy/web/framework/base.py', line 160 in __call__ body = method( trans, **kwargs ) File '/galaxy/run/prod/lib/galaxy/web/controllers/workflow.py', line 1253 in build_from_current_history param_values = job.get_param_values( trans.app ) File '/galaxy/run/prod/lib/galaxy/model/__init__.py', line 263 in get_param_values param_dict = tool.params_from_strings( param_dict, app, ignore_errors=ignore_errors ) File '/galaxy/run/prod/lib/galaxy/tools/__init__.py', line 2041 in params_from_strings return params_from_strings( self.inputs, params, app, ignore_errors ) File '/galaxy/run/prod/lib/galaxy/tools/parameters/__init__.py', line 94 in params_from_strings value = params[key].value_from_basic( value, app, ignore_errors ) File '/galaxy/run/prod/lib/galaxy/tools/parameters/grouping.py', line 462 in value_from_basic rval[ input.name ] = input.value_from_basic( value[ input.name ], app, ignore_errors ) File '/galaxy/run/prod/lib/galaxy/tools/parameters/basic.py', line 136 in value_from_basic return self.to_python( value, app ) File '/galaxy/run/prod/lib/galaxy/tools/parameters/basic.py', line 267 in to_python raise err ValueError: invalid literal for int() with base 10: 'False'