RuntimeError: t() expects a 2D tensor, but self is 3D`

[abk11]

Hi,

Running EnvtestStock_RPG.ipynb I get the following error: `--------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) in 14 state=next_state 15 if env.pointer%64==0: ---> 16 agent.train() 17 pv,pp,pw=env.get_summary() 18 total_pv=pv.sum(axis=1)

in train(self) 73 def train(self): 74 self.optimizer.zero_grad() ---> 75 s = torch.stack(self.s_buffer).t() 76 s_next = torch.stack(self.s_next_buffer).t() 77 r = torch.stack(self.r_buffer).t()

RuntimeError: t() expects a 2D tensor, but self is 3D`

In particular, self.s_buffer is a list of 54 tensors, each of size: torch.Size([6, 36])

Do you know what might be causing it?

Thank you in advance

EDIT: my torch version is 1.0.1

[ghost]

I have the same issue.

[liiklin]

try use pytorch 0.4.0?