Unable to train other algorithms

[SaiAakash]

Hi,

I tried to train the DDPG and TRPO algorithms. They're popping out the following error.

Traceback (most recent call last):
File "manipulation_main/training/train_stable_baselines.py", line 142, in
args.func(args)
File "manipulation_main/training/train_stable_baselines.py", line 71, in train
sb_help.learn()
File "/home/ubuntu/deep-rl-grasping/manipulation_main/training/sb_helper.py", line 169, in learn
model = sb.DDPG(ddpgMlp,
AttributeError: module 'stable_baselines' has no attribute 'DDPG'

Same error for TRPO as well. Can you please let me know how these can be solved ?
Thanks in advance.