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"PaREn does not work in the newly released RM 5.2.2! Is it a bug?"

Hi,
I have downloaded the new version, but it has a new bug:
when you run the PaREn, you will see an empty "Error" dialog box with just a close button. And the PaREn does not work at all. If you press the close button, PaREEn will be closed!!!

I hope RM team solve this problem as soon as possible. Because PaREn is a very nice and necessary piece of software which grately helps RM power.

Thanks

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cbwq

siamak_want wrote:

Hi,
I have downloaded the new version, but it has a new bug:
when you run the PaREn, you will see an empty "Error" dialog box with just a close button. And the PaREn does not work at all. If you press the close button, PaREEn will be closed!!!

I mentioned this in the other thread but a new thread is appropriate for what is likely a new problem.

I've also encountered this error and logged it in bugzilla: http://bugs.rapid-i.com/show_bug.cgi?id=1063
I've also notified dfki.de and they said they'll look at it "within the next days".

This error only effects the Automatic System Construction. The Landmark operator still works fine so at least there's that.

You might want to check your console log (start RapidMiner from a console and check what is written back to the console, assuming you're in Linux/Mac, I have no idea what that would involve in Windows).

If you're output looks like the below extract, then it would be the same problem.

java.lang.NullPointerException
        at com.rapidminer.operator.Operator.getParameterAsRepositoryLocation(Operator.java:1396)
        at com.rapidminer.operator.io.RepositorySource.getRepositoryEntry(RepositorySource.java:91)
        at com.rapidminer.operator.io.RepositorySource.read(RepositorySource.java:105)
        at de.dfki.madm.paren.gui.wizard.AutomaticSystemConstructionWizard.readDataSet(AutomaticSystemConstructionWizard.java:94)
        at de.dfki.madm.paren.gui.wizard.RegressionWizardStep$2.doInBackground(RegressionWizardStep.java:265)
        at de.dfki.madm.paren.gui.wizard.RegressionWizardStep$2.doInBackground(RegressionWizardStep.java:258)
        at javax.swing.SwingWorker$1.call(SwingWorker.java:296)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at javax.swing.SwingWorker.run(SwingWorker.java:335)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)

Quentin
www,clearbluewater.com.au

chikaya

I'm on RM 5.2.008 and PARen 5.2.2, also dubed MLWizard 5.2.2 will also through a java.lang.NullPointerException after selecting data from the Repository with the 'Automatic System Construction' wizard. PARen 5.1.1 however works like charm. Is there any change log for the extensions?
By the way, I couldn't even install via menu > update RapidMiner, there I got some kind of HTTP-ERROR 400, so I downloaded the extension at the Marketplace (rmx_paren-ANY-5.2.2.jar), renamed it to rmx_paren-5.2.2.jar and stored it to my C:\Users\<myAccount>\.RapidMiner5\managed, where the other extensions reside, then also edited the file extensions.xml to make RM see the extension. After that, the extension will be loaded, but then i get the java.lang.Null.....you know the rest.

just my 2 cents

Nils_Woehler

Hi,

I've just check PaRen-Extension version 5.2.2 with RapidMiner 5.2.008.
I also get a NullPointerException with but with this stacktrace:


java.lang.NullPointerException
        at de.dfki.madm.mlwizard.functionality.Regressioner.predict(Regressioner.java:58)
        at de.dfki.madm.mlwizard.functionality.Regressioner.predict(Regressioner.java:83)
        at de.dfki.madm.mlwizard.gui.RegressionWizardStep$2.doInBackground(RegressionWizardStep.java:190)
        at de.dfki.madm.mlwizard.gui.RegressionWizardStep$2.doInBackground(RegressionWizardStep.java:185)
        at javax.swing.SwingWorker$1.call(Unknown Source)
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at javax.swing.SwingWorker.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Can you confirm it?

Best,
Nils

gordon277

Has anyone found a fix for this? I'm also getting a null pointer exception. Where would I be able to download Paren 5.1.1.jar?

earmijo

I'm experiencing the same problems with PaREn described here. Anybody can share the jar file for the last version that worked?

Thanks in advance,

\E

ilkerD

PaREn seems to be replaced by MLWizard extension.
However, I am getting the same null pointer exception with MLWizard through "Automatic System Construction".
Current version: Rapidminer 5.3.008, MLWizard 5.3.1.
Tried different things: Using the extension management interface of RapidMiner, manually adding the extension to plugin folder.
Yet, no success!
Any hints to solve this problem guys?

Here is the console log:

com.rapidminer.operator.tools.ExampleSetToStream <init>
WARNING: Using deprecated example set stream version 1
java.lang.NullPointerException
at de.dfki.madm.mlwizard.functionality.Regressioner.predict(Regressioner
.java:58)
at de.dfki.madm.mlwizard.functionality.Regressioner.predict(Regressioner
.java:83)
at de.dfki.madm.mlwizard.gui.RegressionWizardStep$2.doInBackground(Regre
ssionWizardStep.java:190)
at de.dfki.madm.mlwizard.gui.RegressionWizardStep$2.doInBackground(Regre
ssionWizardStep.java:185)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at de.dfki.madm.mlwizard.gui.RegressionTableModel.<init>(RegressionTable
Model.java:45)
at de.dfki.madm.mlwizard.gui.RegressionWizardStep.createMainPanel(Regres
sionWizardStep.java:137)
at de.dfki.madm.mlwizard.gui.RegressionWizardStep$2.done(RegressionWizar
dStep.java:200)
at javax.swing.SwingWorker$5.run(Unknown Source)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Sour
ce)
at sun.swing.AccumulativeRunnable.run(Unknown Source)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(
Unknown Source)
at javax.swing.Timer.fireActionPerformed(Unknown Source)
at javax.swing.Timer$DoPostEvent.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sour
ce)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

RWingerter

The problem only seems to occur on Windows systems. I use Windows 7, 64 bit and I also had the "java.lang.NULLPointerException" in ML Wizard. For me the error does not occur anymore in ML Wizard version 5.3.1. However, you don't seem to be the only one that still gets the error, cf. http://rapid-i.com/rapidforum/index.php/topic,5560.0.html. Weird ...

Roland