TypeError: step_async() takes 2 positional arguments but 3 were given

[taylorlulu]

I encountered the error:

TypeError: step_async() takes 2 positional arguments but 3 were given

When I'm trying to run the training.py code. After debugging, I found that the problem was caused by

HIMOS/src/highlevel_policy/vec_monitor_MOD.py

Lines 86 to 91 in 635ae69

	if indices is None:
	self.step_async(actions)
	return self.step_wait()
	else:
	self.step_async(actions,indices)
	return self.step_wait(indices)

while the step_async function was referenced to the
https://github.com/DLR-RM/stable-baselines3/blob/21f6a474a4755996709efee8c0aab309df905cbf/stable_baselines3/common/vec_env/base_vec_env.py#L263-L264 which only takes two arguments. Is it a problem caused by the version of stable_baselines3?

[tangliangcjy]

do you have solved this problem?

[dHonerkamp]

Hi, sorry for not seeing the issue before. What version of stable baselines are you using? Can you try it with the version used by this repository, which should be stable-baselines3==1.4.0? Or with the provided docker image directly?

[tangliangcjy]

Hi, sorry for not seeing the issue before. What version of stable baselines are you using? Can you try it with the version used by this repository, which should be stable-baselines3==1.4.0? Or with the provided docker image directly?

I try it to train by using stable-baselines3==1.4.0,but i encountered the same problem.I test it with pretrain result is well.

[dHonerkamp]

Thanks for bringing this up. It looks like a modification that passed the indices through the vecenv wrepper did not make it into this version of the code. I've just added the missing component.