Examples don't work anymore

Question

Examples don't work anymore

iirekm opened this issue 4 years ago · comments

AttributeError: module 'keras.backend' has no attribute 'image_dim_ordering'
TypeError: len is not well defined for symbolic Tensors. (activation_4/activation_4/Identity:0) Please call x.shaperather thanlen(x) for shape information.
with TF >= 2.2.0: "ModuleNotFoundError: No module named 'tensorflow.contrib'"
with TF 2.0.0, 2.1.0: RuntimeError: dictionary changed size during iteration

Exact Keras/TF versions in setup.py or at least on webpage aren't even listed, but it's important to have exactly the same environment as you during development. You made huuuge effort developing this project, but there are no instructions how to exactly use it.

Andrei Kukharev · Answer 1 · Wed Oct 14 2020 01:03:28 GMT+0800 (China Standard Time)

yeah, the same error.
how to fix it?

Earl Potters · Answer 2 · Fri Nov 06 2020 10:55:34 GMT+0800 (China Standard Time)

I had the same problem as @iirekm I solved it by installing the following package versions

keras Version: 2.3.0
tensorflow Version: 1.14.0
keras-rl Version: 0.4.2

Antonio Triguero Noriega · Answer 3 · Fri Dec 18 2020 22:58:33 GMT+0800 (China Standard Time)

The answer from @Slyracoon23 solve the problem for me (Google Colaboratory - GPU)

bannsec · Answer 4 · Tue Jan 05 2021 08:23:06 GMT+0800 (China Standard Time)

Same issue (and looks like another issue ticket as well). Haven't been able to reproduce fix since tensorflow 1.14.0 wasn't built for python 3.8, so would have to fully build it myself..

Anyone know if this project is getting support in the future? Looks pretty neat but also pretty dead. Unfortunate :(

EDIT: Looks like someone has updated it here: https://github.com/wau/keras-rl2 That's a newer (v2) of tensorflow at least but not the current. I can confirm keras-rl2 at least works on the example dqn though it may have other issues.

bannsec · Answer 5 · Tue Jan 19 2021 00:37:23 GMT+0800 (China Standard Time)

One more update since I just found it. If you're just looking to play with and learn RL in an easy environment, I've been blown away by the documentation and support by this project:

https://github.com/DLR-RM/stable-baselines3

It uses pyTorch and is actively maintained and documented. Definitely recommend.

stale · Answer 6 · Thu Jun 03 2021 01:35:11 GMT+0800 (China Standard Time)

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.