germain-hug/Deep-RL-Keras

[Error] Fetch data for Adam

Closed this issue · 2 comments

Deleted user commented

Hi,

When I try to run the ddpg code as follows:

python3 main.py --type DDPG --env LunarLanderContinuous-v2

an error happens in Deep-RL-Keras/DDPG/actor.py at line 63, in the train function
self.adam_optimizer([states, grads]):

File "./.venv/lib/python3.5/site-packages/tensorflow/python/client/session.py", line 1441, in __init__ session._session, options_ptr, status) File "./.venv/lib/python3.5/site-packages/tensorflow/python/framework/errors_impl.py", line 519, in __exit__ c_api.TF_GetCode(self.status.status)) tensorflow.python.framework.errors_impl.InvalidArgumentError: Tried to fetch data for 'Adam', which produces no output. To run to a node but not fetch any data, pass 'Adam' as an argument to the 'target_node_names' argument of the Session::Run API. Exception ignored in: <bound method BaseSession._Callable.__del__ of <tensorflow.python.client.session.BaseSession._Callable object at 0x7f830c0528d0>> Traceback (most recent call last): File "./.venv/lib/python3.5/site-packages/tensorflow/python/client/session.py", line 1467, in __del__ self._session._session, self._handle, status) File "./.venv/lib/python3.5/site-packages/tensorflow/python/framework/errors_impl.py", line 519, in __exit__ c_api.TF_GetCode(self.status.status)) tensorflow.python.framework.errors_impl.InvalidArgumentError: No such callable handle: 140198369660512

Did you already have this issue ?

germain-hug commented

Hi,
I don’t recall encountering this error, have you checked that you are using Keras 2.1.6 ?

Deleted user commented

I downgraded Keras and now it works. Weird.
Thank you!