Compilation error in PuddleWorld example (others work fine)

[Sergio Valcarcel]

Hi all!

First of all, thanks for making available all this excellent work!! :-)

I want to use RLPark for solving the Puddle World with multiple cooperating agents.

As a first step, I am trying to run the Puddle World example, but I get the following error message:

$ java -cp rlpark.jar rlpark.example.demos.learning.OffPACPuddleWorld
Exception in thread "main" java.lang.ClassCastException: rlpark.plugin.rltoys.agents.offpolicy.OffPolicyAgentDirect cannot be cast to rlpark.plugin.rltoys.agents.offpolicy.OffPolicyAgentFA
    at rlpark.example.demos.learning.OffPACPuddleWorld.<init>(Unknown Source)
    at rlpark.example.demos.learning.OffPACPuddleWorld.main(Unknown Source)

Is that normal? Could you give me a hint where to debug?

Other examples, like "java -cp rlpark.jar rlpark.example.demos.learning.QLearningMaze" work fine.

Thank you very much!
Best
Sergio

[Thomas Degris]

Hello,

that should be fixed now. Please update your version of RLPark.

Thomas

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[Sergio Donal]

It works great!

Thanks so much!!

Best regards,
Sergio

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[Sergio Valcarcel]

Hi,

When I set the project as an Eclipse plugin (I would like to debug with Zephyr directly from the same IDE), then I still get the same error:

Exception in thread "main" java.lang.ClassCastException: rlpark.plugin.rltoys.agents.offpolicy.OffPolicyAgentDirect cannot be cast to rlpark.plugin.rltoys.agents.offpolicy.OffPolicyAgentFA

    at MyExample01.<init>(MyExample01.java:63)
    at MyExample01.main(MyExample01.java:174)

I have installed the plugin from "Help --> Install New Software..." with link "http://people.bordeaux.inria.fr/degris/public/rlpark" right today.


Thanks!
Sergio

[Sergio Valcarcel]

Hi,

sorry, it must be a problem with my project because it works fine when I use

  public static void main(String[] args) {
    new OffPACPuddleWorld().run();

  }

Thanks!
Sergio

On Sunday, July 28, 2013 12:29:25 PM UTC+2, Sergio Valcarcel wrote:

[Sergio Valcarcel]

Sorry for the ultra-posting, the error was for an older version of the code when I copied the example.
I substituted line 64 of the OffPACPuddleWorld exampe for
    CriticAdapterFA criticAdapter = (CriticAdapterFA) ((OffPolicyAgentDirect) agent).learner().predictor();
and it works nice now.

Thanks!
Sergio

On Sunday, July 28, 2013 12:29:25 PM UTC+2, Sergio Valcarcel wrote: