TypeError: Can't instantiate abstract class SubprocVecEnv with abstract methods step_async, step_wait

[okdolly-001]

WARNING:tensorflow:From /Users/domore/Documents/deeplearning/lib/python3.6/site-packages/tensorflow/contrib/learn/python/learn/datasets/base.py:198: retry (from tensorflow.contrib.learn.python.learn.datasets.base) is deprecated and will be removed in a future version.
Instructions for updating:
Use the retry module or similar alternatives.
algorithm : a2c
timesteps : 2000000
exploration_fraction : 0.5
prioritized : True
dueling : True
num_agents : 4
lr : 0.0005
random lr : 0.0005
Traceback (most recent call last):
File "/Users/domore/starcraft/pysc2-examples/train_mineral_shards.py", line 302, in
main()
File "/Users/domore/starcraft/pysc2-examples/train_mineral_shards.py", line 168, 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

[woaipichuli]

I get the same problem.Have you solved it out yet?

[okdolly-001]

No, unfortunately.