Traceback (most recent call last):


 "train_mineral_shards.py", line 305, in <module>

main()


 "train_mineral_shards.py", line 171, in main

env = SubprocVecEnv(FLAGS.num_agents + FLAGS.num_scripts, FLAGS.map)
TypeError: Can't instantiate abstract class SubprocVecEnv with abstract methods step_async, step_wait

Traceback (most recent call last):


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner

response = get_response(request)


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response

response = self.process_exception_by_middleware(e, request)


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response

response = wrapped_callback(request, *callback_args, **callback_kwargs)


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/contrib/auth/decorators.py", line 21, in _wrapped_view

return view_func(request, *args, **kwargs)


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/weblate/trans/views/js.py", line 266, in task_progress

'result': task.result,
 
 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/http/response.py", line 561, in __init__

data = json.dumps(data, cls=encoder, **json_dumps_params)
 
 "/usr/lib64/python3.6/json/__init__.py", line 238, in dumps

**kw).encode(obj)


 "/usr/lib64/python3.6/json/encoder.py", line 199, in encode

chunks = self.iterencode(o, _one_shot=True)


 "/usr/lib64/python3.6/json/encoder.py", line 257, in iterencode

return _iterencode(o, 0)


 "/export/apps/weblate/venv/lib64/python3.6/site-packages/django/core/serializers/json.py", line 104, in default

return super().default(o)


 "/usr/lib64/python3.6/json/encoder.py", line 180, in default

o.__class__.__name__)
TypeError: Object of type 'KeyError' is not JSON serializable
