replaceafill@system76:~/sandboxes/cando_missing_scores_justas_fix/schooltool.cando$ make run
bin/start-schooltool-instance instance
Leyendo configuración de /home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/instance/schooltool.conf
2012-11-08 06:02:07,915 (2847) Blob directory /home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/instance/var/blobs does not exist. Selected `bushy` layout.
2012-11-08 06:02:07,916 (2847) Blob directory '/home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/instance/var/blobs/' does not exist. Created new directory.
2012-11-08 06:02:07,916 (2847) Blob temporary directory '/home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/instance/var/blobs/tmp' does not exist. Created new directory.
2012-11-08 06:02:07,917 main db: evolving in mode EVOLVEMINIMUM
2012-11-08 06:02:07,917 main db/schooltool.cando: currently at generation 1, targetting generation 2
2012-11-08 06:02:08,188 main db/schooltool.cando: failed to evolve to generation 2
Traceback (most recent call last):
  File "/home/replaceafill/.buildout/eggs/zope.app.generations-3.6.1-py2.7.egg/zope/app/generations/generations.py", line 494, in evolve
    manager.evolve(context, generation)
  File "/home/replaceafill/.buildout/eggs/zope.app.generations-3.6.1-py2.7.egg/zope/app/generations/generations.py", line 145, in evolve
    evolver.evolve(context)
  File "/home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/src/schooltool/cando/generations/evolve2.py", line 185, in evolve
    fixSkillScores(app, person)
  File "/home/replaceafill/sandboxes/cando_missing_scores_justas_fix/schooltool.cando/src/schooltool/cando/generations/evolve2.py", line 145, in fixSkillScores
    if ref in evaluations._history:
TypeError: argument of type 'NoneType' is not iterable
Traceback (most recent call last):
  File "bin/start-schooltool-instance", line 152, in <module>
    schooltool.paste.run.main()
  File "/home/replaceafill/.buildout/eggs/schooltool-2.3.0-py2.7.egg/schooltool/paste/run.py", line 175, in main
    paste.script.command.run(['serve', conf_file] + extra_options)
  File "/home/replaceafill/.buildout/eggs/PasteScript-1.7.5-py2.7.egg/paste/script/command.py", line 104, in run
    invoke(command, command_name, options, args[1:])
  File "/home/replaceafill/.buildout/eggs/PasteScript-1.7.5-py2.7.egg/paste/script/command.py", line 143, in invoke
    exit_code = runner.run(args)
  File "/home/replaceafill/.buildout/eggs/PasteScript-1.7.5-py2.7.egg/paste/script/command.py", line 238, in run
    result = self.command()
  File "/home/replaceafill/.buildout/eggs/PasteScript-1.7.5-py2.7.egg/paste/script/serve.py", line 284, in command
    relative_to=base, global_conf=vars)
  File "/home/replaceafill/.buildout/eggs/PasteScript-1.7.5-py2.7.egg/paste/script/serve.py", line 321, in loadapp
    **kw)
  File "/home/replaceafill/.buildout/eggs/PasteDeploy-1.5.0-py2.7.egg/paste/deploy/loadwsgi.py", line 247, in loadapp
    return loadobj(APP, uri, name=name, **kw)
  File "/home/replaceafill/.buildout/eggs/PasteDeploy-1.5.0-py2.7.egg/paste/deploy/loadwsgi.py", line 272, in loadobj
    return context.create()
  File "/home/replaceafill/.buildout/eggs/PasteDeploy-1.5.0-py2.7.egg/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/home/replaceafill/.buildout/eggs/PasteDeploy-1.5.0-py2.7.egg/paste/deploy/loadwsgi.py", line 146, in invoke
    return fix_call(context.object, context.global_conf, **context.local_conf)
  File "/home/replaceafill/.buildout/eggs/PasteDeploy-1.5.0-py2.7.egg/paste/deploy/util.py", line 56, in fix_call
    val = callable(*args, **kw)
  File "/home/replaceafill/.buildout/eggs/schooltool-2.3.0-py2.7.egg/schooltool/paste/main.py", line 48, in schooltool_app_factory
    os.path.join(global_conf['here'], config_file))
  File "/home/replaceafill/.buildout/eggs/schooltool-2.3.0-py2.7.egg/schooltool/paste/main.py", line 37, in __init__
    db = self.setup(options)
  File "/home/replaceafill/.buildout/eggs/schooltool-2.3.0-py2.7.egg/schooltool/app/main.py", line 693, in setup
    notify(DatabaseOpened(db))
  File "/home/replaceafill/.buildout/eggs/zope.event-3.5.1-py2.7.egg/zope/event/__init__.py", line 31, in notify
    subscriber(event)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/event.py", line 24, in dispatch
    zope.component.subscribers(event, None)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/_api.py", line 136, in subscribers
    return sitemanager.subscribers(objects, interface)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/registry.py", line 321, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/home/replaceafill/.buildout/eggs/zope.interface-3.6.1-py2.7-linux-x86_64.egg/zope/interface/adapter.py", line 585, in subscribers
    subscription(*objects)
  File "/home/replaceafill/.buildout/eggs/zope.app.appsetup-3.14.0-py2.7.egg/zope/app/appsetup/bootstrap.py", line 175, in bootStrapSubscriber
    zope.event.notify(zope.processlifetime.DatabaseOpenedWithRoot(db))
  File "/home/replaceafill/.buildout/eggs/zope.event-3.5.1-py2.7.egg/zope/event/__init__.py", line 31, in notify
    subscriber(event)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/event.py", line 24, in dispatch
    zope.component.subscribers(event, None)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/_api.py", line 136, in subscribers
    return sitemanager.subscribers(objects, interface)
  File "/home/replaceafill/.buildout/eggs/zope.component-3.10.0-py2.7.egg/zope/component/registry.py", line 321, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/home/replaceafill/.buildout/eggs/zope.interface-3.6.1-py2.7-linux-x86_64.egg/zope/interface/adapter.py", line 585, in subscribers
    subscription(*objects)
  File "/home/replaceafill/.buildout/eggs/zope.app.generations-3.6.1-py2.7.egg/zope/app/generations/generations.py", line 521, in evolveMinimumSubscriber
    evolve(event.database, EVOLVEMINIMUM)
  File "/home/replaceafill/.buildout/eggs/zope.app.generations-3.6.1-py2.7.egg/zope/app/generations/generations.py", line 506, in evolve
    manager.generation)
zope.app.generations.interfaces.UnableToEvolve: (2, u'schooltool.cando', 2)
make: *** [run] Error 1
replaceafill@system76:~/sandboxes/cando_missing_scores_justas_fix/schooltool.cando$