AttributeError: module 'typing' has no attribute '_SpecialForm'

[TriBall3]

When I run
python run_sim.py --eval --tasks flingbot-normal-rect-eval.hdf5 --load flingbot.pth --num_processes 1 --gui
there is a problem :

Traceback (most recent call last):
File "run_sim.py", line 1, in
from utils import (
File "/media/randy/299D817A2D97AD94/fty/flingbot/utils.py", line 2, in
from environment import SimEnv, TaskLoader
File "/media/randy/299D817A2D97AD94/fty/flingbot/environment/init.py", line 1, in
from .simEnv import SimEnv
File "/media/randy/299D817A2D97AD94/fty/flingbot/environment/simEnv.py", line 3, in
from .utils import (
File "/media/randy/299D817A2D97AD94/fty/flingbot/environment/utils.py", line 1, in
from torch import cat, tensor
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/init.py", line 643, in
from .functional import * # noqa: F403
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/functional.py", line 6, in
import torch.nn.functional as F
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/nn/init.py", line 1, in
from .modules import * # noqa: F403
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/nn/modules/init.py", line 2, in
from .linear import Identity, Linear, Bilinear, LazyLinear
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/nn/modules/linear.py", line 6, in
from .. import functional as F
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/nn/functional.py", line 11, in
from .._jit_internal import boolean_dispatch, _overload, BroadcastingList1, BroadcastingList2, BroadcastingList3
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/torch/_jit_internal.py", line 34, in
from typing_extensions import Final
File "/home/randy/anaconda3/envs/flingbot/lib/python3.6/site-packages/typing_extensions.py", line 159, in
class _FinalForm(typing._SpecialForm, _root=True):
AttributeError: module 'typing' has no attribute '_SpecialForm'

How can I solve this problem?

[RoeweYaoo]

I met too，would u solve it？？

[mufenglalala]

What python version are you using?

[zcswdt]

I met too，would u solve it？？

Hello, have you passed the author's training program?

[zcswdt]

I met too，would u solve it？？

Hello, have you passed the author's training program?

Hello, have you passed the author's training program?