Zephyr

[Davi Carnaúba]

Hi,

I tried to install new plugins by adding http://www.ualberta.ca/~degris/zephyr into help -> Install new software... but no plugins has been shown.

Best regards,

Davi

[Thomas Degris]

Hello,

if you would like to install Zephyr in Eclipse, it is better to go through the Eclipse Marketplace. Moreover, you may also need to untick the option "Group Items by category" to see the plugins. I noticed this bug recently and I haven't fixed it yet.

Thomas

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[Thomas Degris]

This bug is now fixed.

All the best,

Thomas

On 11 nov. 2012, at 20:51, Davi Carnaúba wrote:

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[hung.n...@gmail.com]

Hi!

I installed the Zephyr standalone application for MAC OS X 64bits, then installed the RLPark plug-ins in Zephyr following the guidelines provided (In the menu, go to: Help -> Install New Software...) But the Demo menu does not appear!

Also, from command line, I can only run the demos for SarsaMountainCar and ActorCriticPendulum. The other 2 demos OffPACContinuousGridworld and QLearningMaze produce exceptions.

Exception in thread "main" java.lang.NoClassDefFoundError: rlpark/example/demos/learning/OffPACContinuousGridworld
Caused by: java.lang.ClassNotFoundException: rlpark.example.demos.learning.OffPACContinuousGridworld
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Thanks, and best regards,
Hung Ngo

[Thomas Degris]

Hi,

Thank you for trying Zephyr & RLPark. 

I installed the Zephyr standalone application for MAC OS X 64bits, then installed the RLPark plug-ins in Zephyr following the guidelines provided (In the menu, go to: Help -> Install New Software...) But the Demo menu does not appear!

In the Zephyr application, in the menu: Zephyr->About Zephyr->Installation Details, in the tab Installed Software, please make sure that RLPark Demos is installed. If not, the plugin should be installed using Help->Install New Software

Also, from command line, I can only run the demos for SarsaMountainCar and ActorCriticPendulum. The other 2 demos OffPACContinuousGridworld and QLearningMaze produce exceptions.

OffPACContinuousGridworld has changed name. You can start the demo by running:

java -cp rlpark.jar rlpark.example.demos.learning.OffPACPuddleWorld

I have updated the documentation.

QLearningMaze: I fixed a stupid bug. Please update your rlpark.jar, then you will be able to run the demo with:

java -cp rlpark.jar rlpark.example.demos.learning.QLearningMaze

Best regards,

Thomas

[Hung Ngo]

Thanks a lot for prompt reply, Thomas!
I tested from command line again. It's working like a charm!
However, for the plug-ins in Zephyr, RLPark Demo is missing! Here's the list of installed ones:

  RLPark    1.0.0.201301161640    rlpark.feature.rl.feature.group    Thomas
  RLPark Critterbot    1.0.0.201301161640    rlpark.feature.critterbot.feature.group    Thomas
  RLPark IRobot    1.0.0.201301161640    rlpark.feature.irobot.feature.group    Thomas
  RLPark Video    1.0.0.201301161640    rlpark.feature.video.feature.group    Thomas
  Zephyr    1.0.0.201207241508    zephyr.e4compat.product    null

When I reinstall, I expand the list ("Work with" field), it's still the same as above; RLPark Demo is still missing.

Best,
Hung

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--
Time and tide wait for no one

[Thomas Degris]

I fixed it. Please let me know if that works for you.

Thank you,

Thomas

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[Hung Ngo]

Dear Thomas,
I reload the plugins and the Demo menu appears now!
I could run all the demos except for two:
1) Zephyr error: rlpark.example.demos.learning.OffPACContinuousGridworld runnable id not found
(Should be OffPACPuddleWorld)
2) iRobot demo: java.lang.NullPointerException
    at rlpark.plugin.irobot.internal.irobot.IRobotDiscoConnection.send(IRobotDiscoConnection.java:27)

Thank you!
Best,
Hung

[Thomas Degris]

> I reload the plugins and the Demo menu appears now!
> I could run all the demos except for two:

Thank you for testing !

> 1) Zephyr error: rlpark.example.demos.learning.OffPACContinuousGridworld runnable id not found
> (Should be OffPACPuddleWorld)

I have fixed it.

> 2) iRobot demo: java.lang.NullPointerException
> at rlpark.plugin.irobot.internal.irobot.IRobotDiscoConnection.send(IRobotDiscoConnection.java:27)

You need to start a server to connect to an iRobot Create robot. There is more information on the following tutorial:
http://rlpark.github.com/doc_tutorialcreate.html

Best,

Thomas