ratheesh2107

When I run the code after changing the line. It runs for few episodes and again gives an error saying that "Unable to open display 'default"

Can you try installing gym using pip install gym[all]

can you try installing keras with the specified version and try executing the code sudo pip install keras==1.1.0

Please try to install keras 1.1.0 as sudo pip install keras==1.1.0 and tensorflow as sudo pip install tensorflow==0.12.0r0 Hope this will solve your issue

Please check this link https://github.com/yanpanlau/DDPG-Keras-Torcs/issues/36