Traceback (most recent call last):
  File "/home/nmatlaga/Projects/evennia/evennia/evennia/commands/cmdhandler.py", line 594, in _run_command
    _progressive_cmd_run(cmd, ret)
  File "/home/nmatlaga/Projects/evennia/evennia/evennia/commands/cmdhandler.py", line 193, in _progressive_cmd_run
    value = generator.next()
  File "/home/nmatlaga/Projects/evennia/evennia/evennia/commands/default/building.py", line 2914, in func
    prototype = spawner.search_prototype(key=key, return_meta=True)
AttributeError: 'module' object has no attribute 'search_prototype'