[question] Cannot enjoy the trained agents.

After cloning the rl-baselines3-zoo, I was trying to train my own agent. By : python train.py --algo algo_name --env env_id After that, I used python enjoy.py --algo td3 --env AntBulletEnv-v0 -f logs/ However I got the following problem

Loading latest experiment, id=2 pybullet build time: Jun 2 2020 06:49:02 
/home/dell/gym/gym/logger.py:30: UserWarning: 
WARN: Box bound precision lowered by casting to float32 warnings.warn(colorize('%s: %s'%('WARN', msg % args), 'yellow')) 
Process ForkServerProcess-1: Traceback (most recent call last):
 
File "/home/dell/anaconda3/lib/python3.8/multiprocessing/process.py", 
line 315, in _bootstrap self.run() 

File "/home/dell/anaconda3/lib/python3.8/multiprocessing/process.py", 
line 108, in run self._target(*self._args, **self._kwargs) File "/home/dell/stable-baselines3/stable_baselines3/common/vec_env/subproc_vec_env.py", 
line 42, in _worker 
**raise NotImplementedError
 NotImplemented Error**

 Traceback (most recent call last): File "enjoy.py", 
line 201, in <module> main() File "enjoy.py", line 116, in main
 model = ALGOS[algo].load(model_path, env=env) 
File "/home/dell/stable-baselines3/stable_baselines3/common/base_class.py",
 line 362, in load model._setup_model() 
File "/home/dell/stable-baselines3/stable_baselines3/td3/td3.py",
 line 95, in _setup_model super(TD3, self)._setup_model() 
File "/home/dell/stable-baselines3/stable_baselines3/common/base_class.py", 
line 729, in _setup_model self.set_random_seed(self.seed)
 File "/home/dell/stable-baselines3/stable_baselines3/common/base_class.py", 
line 461, in set_random_seed self.env.seed(seed) File "/home/dell/stable-baselines3/stable_baselines3/common/vec_env/subproc_vec_env.py",
 line 112, in seed return [remote.recv() for remote in self.remotes] 
File "/home/dell/stable-baselines3/stable_baselines3/common/vec_env/subproc_vec_env.py", 
line 112, in <listcomp> return [remote.recv() for remote in self.remotes] File "/home/dell/anaconda3/lib/python3.8/multiprocessing/connection.py", 
line 250, in recv buf = self._recv_bytes() 
File "/home/dell/anaconda3/lib/python3.8/multiprocessing/connection.py", 
line 414, in _recv_bytes buf = self._recv(4) 
File "/home/dell/anaconda3/lib/python3.8/multiprocessing/connection.py", 
line 383, in _recv 
**raise EOFError 
EOFError**`

System Info

• Stable Baselines3 was installed by pip
• Ubuntu 18.04
• Python 3.8.3
• PyTorch 1.5.0
• Gym 0.17.2
• Pybullet 2.8.1
• 2* Nvidia RTX 2080TI CUDA 10.2

I appreciate your help. Thank you in advance.

[araffin]

I recently upgraded both SB3 and SB3-zoo

Please do pip install git+https://github.com/DLR-RM/stable-baselines3 (cf doc) or enable pre-release install. The Stable-Baselines version should be 0.7.0a1

[araffin]

Hello,

Could you reformat your traceback using markdown codeblock? (cf issue template)