Reading configuration from /etc/schooltool/standard/schooltool.conf
Traceback (most recent call last):
  File "/usr/bin/start-schooltool-instance", line 9, in <module>
    load_entry_point('schooltool==2.9.11', 'console_scripts', 'start-schooltool-instance')()
  File "/usr/lib/python2.7/dist-packages/schooltool/paste/run.py", line 132, in main
    paste.script.command.run(['serve', conf_file] + extra_options)
  File "/usr/lib/python2.7/dist-packages/paste/script/command.py", line 104, in run
    invoke(command, command_name, options, args[1:])
  File "/usr/lib/python2.7/dist-packages/paste/script/command.py", line 143, in invoke
    exit_code = runner.run(args)
  File "/usr/lib/python2.7/dist-packages/paste/script/command.py", line 238, in run
    result = self.command()
  File "/usr/lib/python2.7/dist-packages/paste/script/serve.py", line 284, in command
    relative_to=base, global_conf=vars)
  File "/usr/lib/python2.7/dist-packages/paste/script/serve.py", line 321, in loadapp
    **kw)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
    return loadobj(APP, uri, name=name, **kw)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
    return context.create()
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 144, in invoke
    **context.local_conf)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/util.py", line 55, in fix_call
    val = callable(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/paste/urlmap.py", line 28, in urlmap_factory
    app = loader.get_app(app_name, global_conf=global_conf)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 350, in get_app
    name=name, global_conf=global_conf).create()
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 146, in invoke
    return fix_call(context.object, context.global_conf, **context.local_conf)
  File "/usr/lib/python2.7/dist-packages/paste/deploy/util.py", line 55, in fix_call
    val = callable(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/schooltool/paste/main.py", line 45, in schooltool_app_factory
    os.path.join(global_conf['here'], config_file))
  File "/usr/lib/python2.7/dist-packages/schooltool/paste/main.py", line 34, in __init__
    db = self.setup(options)
  File "/usr/lib/python2.7/dist-packages/schooltool/app/main.py", line 688, in setup
    db = self.openDB(options)
  File "/usr/lib/python2.7/dist-packages/schooltool/app/main.py", line 707, in openDB
    notify(DatabaseOpened(db))
  File "/usr/lib/python2.7/dist-packages/zope/event/__init__.py", line 31, in notify
    subscriber(event)
  File "/usr/lib/python2.7/dist-packages/zope/component/event.py", line 27, in dispatch
    component_subscribers(event, None)
  File "/usr/lib/python2.7/dist-packages/zope/component/_api.py", line 139, in subscribers
    return sitemanager.subscribers(objects, interface)
  File "/usr/lib/python2.7/dist-packages/zope/interface/registry.py", line 323, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/usr/lib/python2.7/dist-packages/zope/interface/adapter.py", line 601, in subscribers
    subscription(*objects)
  File "/usr/lib/python2.7/dist-packages/zope/app/appsetup/bootstrap.py", line 175, in bootStrapSubscriber
    zope.event.notify(zope.processlifetime.DatabaseOpenedWithRoot(db))
  File "/usr/lib/python2.7/dist-packages/zope/event/__init__.py", line 31, in notify
    subscriber(event)
  File "/usr/lib/python2.7/dist-packages/zope/component/event.py", line 27, in dispatch
    component_subscribers(event, None)
  File "/usr/lib/python2.7/dist-packages/zope/component/_api.py", line 139, in subscribers
    return sitemanager.subscribers(objects, interface)
  File "/usr/lib/python2.7/dist-packages/zope/interface/registry.py", line 323, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/usr/lib/python2.7/dist-packages/zope/interface/adapter.py", line 601, in subscribers
    subscription(*objects)
  File "/usr/lib/python2.7/dist-packages/zope/app/generations/generations.py", line 521, in evolveMinimumSubscriber
    evolve(event.database, EVOLVEMINIMUM)
  File "/usr/lib/python2.7/dist-packages/zope/app/generations/generations.py", line 506, in evolve
    manager.generation)
zope.app.generations.interfaces.UnableToEvolve: (45, u'schooltool', 45)