Question Error when training process started

After I start the training, the environment.py connects to the brains, gets their hyperparameters for the related brains and then, I encounter with an error like the one below and the training stops itself.


Traceback (most recent call last):
File "C:\Users\user\anaconda3\envs\mlagentsrelease1\lib\multiprocessing\connection.py", line 312, in _recv_bytes
nread, err = ov.GetOverlappedResult(True)
BrokenPipeError: [WinError 109]

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\user\anaconda3\envs\mlagentsrelease1\lib\multiprocessing\process.py", line 297, in _bootstrap
self.run()
File "C:\Users\user\anaconda3\envs\mlagentsrelease1\lib\multiprocessing\process.py", line 99, in run
self._target(*self._args, **self._kwargs)
File "c:\users\user\desktop\ml-agents-15.0-capstone\ml-agents-release_1\ml-agents\mlagents\trainers\subprocess_env_manager.py", line 151, in worker
req: EnvironmentRequest = parent_conn.recv()
File "C:\Users\user\anaconda3\envs\mlagentsrelease1\lib\multiprocessing\connection.py", line 250, in recv
buf = self._recv_bytes()
File "C:\Users\user\anaconda3\envs\mlagentsrelease1\lib\multiprocessing\connection.py", line 321, in _recv_bytes
raise EOFError
EOFError

 

I use
ml-agents: 0.16.0,
ml-agents-envs: 0.16.0,
Communicator API: 1.0.0,
TensorFlow: 2.0.0

 

Also python 3.7.7