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new operator does not work on mac

i created an operator, put it in the correct place(com.rapidminer.operator.clustering.clusterer), and also add operator's info to OperatorCore.xml and OperatorCoreDocumentation.xml, built the project again, but the new operator does not work properly. error messages like this:

--
Dec 14, 2011 11:42:58 PM com.rapidminer.tools.OperatorService registerOperators
SEVERE: Cannot read operator description file 'OperatorsCore.xml': no valid XML: null
java.lang.NullPointerException
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:267)
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:256)
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:256)
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:256)
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:256)
at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:232)
at com.rapidminer.tools.OperatorService.registerOperators(OperatorService.java:206)
at com.rapidminer.tools.OperatorService.registerOperators(OperatorService.java:180)
at com.rapidminer.tools.OperatorService.init(OperatorService.java:131)
at com.rapidminer.RapidMiner.init(RapidMiner.java:465)
at com.rapidminer.gui.RapidMinerGUI.run(RapidMinerGUI.java:221)
at com.rapidminer.gui.RapidMinerGUI.launch(RapidMinerGUI.java:505)
at com.rapidminer.gui.RapidMinerGUI.main(RapidMinerGUI.java:488)
--

i did the same thing on Windows, it works correctly.

anyone can give me some ideas to fix this?

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Marco_Boeck

Hi,

this sounds like RapidMiner is somehow missing libraries to work properly. Does this thread help you: click?

Regards,
Marco

navyboys

hi,

i checked out the latest source from svn (https://rapidminer.svn.sourceforge.net/svnroot/rapidminer/Vega) and found nothing different from environment (/libs ) on Windows, which rapidminer runs well on it.

in the post http://rapid-i.com/rapidforum/index.php/topic,4406.0.html ,
someone says that
--
These are the necessary libraries (even if there is no error message if some are missing!!):

encog.jar
jep.jar
joone-engine.jar
jxl.jar
launcher.jar
mail.jar
rapidminer.jar
vldocking.jar
--

i checked out my libs, there's no
- launcher.jar
- rapidminer.jar
how can find these two jars?
i can't find them from svn.

Marco_Boeck

Hi,

you can use the Ant build file to create these (via createJar).

Regards,
Marco

navyboys

hi,

i put all the jar files into the /lib, but nothing changed.
any other ideas?

Marco_Boeck

Hi,

do you use Eclipse? If so, you can try and post the content of the .classpath file from the project here.
However if your project setup is 100% identical to your windows machine and it works on windows but not on mac, it sounds like some mac problem with which I cannot help you..

Regards,
Marco

navyboys

hi, Marco

thanks for your following.
here is the content of .classpath



<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry excluding="com/rapidminer/doc/|com/rapidminer/test/|com/rapidminer/example/test/|com/rapidminer/operator/performance/test/" kind="src" path="src"/>
	<classpathentry kind="src" path="src_generated"/>
	<classpathentry kind="src" path="resources"/>
	<classpathentry kind="src" path="src_launcher"/>
	<classpathentry kind="src" path="src_test"/>
	<classpathentry kind="lib" path="lib/kdb.jar"/>
	<classpathentry kind="lib" path="lib/jmathplot.jar"/>
	<classpathentry kind="lib" path="lib/xpp3.jar"/>
	<classpathentry kind="lib" path="lib/xstream.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/jxl.jar"/>
	<classpathentry kind="lib" path="lib/jugpreview.jar"/>
	<classpathentry kind="lib" path="lib/joone-engine.jar"/>
	<classpathentry kind="lib" path="lib/jcommon.jar"/>
	<classpathentry kind="lib" path="lib/jfreechart.jar"/>
	<classpathentry kind="lib" path="lib/junit.jar"/>
	<classpathentry kind="lib" path="lib/commons-collections.jar"/>
	<classpathentry kind="lib" path="lib/looks.jar"/>
	<classpathentry kind="lib" path="lib/collections-generic.jar"/>
	<classpathentry kind="lib" path="lib/colt.jar"/>
	<classpathentry kind="lib" path="lib/concurrent.jar"/>
	<classpathentry kind="lib" path="lib/jama.jar"/>
	<classpathentry kind="lib" path="lib/jep.jar"/>
	<classpathentry kind="lib" path="lib/jung-algorithms.jar"/>
	<classpathentry kind="lib" path="lib/jung-api.jar"/>
	<classpathentry kind="lib" path="lib/jung-graph-impl.jar"/>
	<classpathentry kind="lib" path="lib/jung-visualization.jar"/>
	<classpathentry kind="lib" path="lib/jdbc/hsqldb.jar"/>
	<classpathentry kind="lib" path="lib/jdbc/iijdbc.jar"/>
	<classpathentry kind="lib" path="lib/jdbc/jtds-1.2.2.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/vldocking.jar" sourcepath="/VLDocking/src"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-export.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphics2d.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio-emf.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio-pdf.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio-ps.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio-svg.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio-swf.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-graphicsio.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-io.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-swing.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-util.jar"/>
	<classpathentry exported="true" kind="lib" path="lib/freehep/freehep-xml.jar"/>
	<classpathentry kind="lib" path="lib/rsyntaxtextarea.jar" sourcepath="/RSyntaxTextArea"/>
	<classpathentry kind="lib" path="lib/xmlrpc-client-3.1.3.jar"/>
	<classpathentry kind="lib" path="lib/xmlrpc-common-3.1.3.jar"/>
	<classpathentry kind="lib" path="lib/ws-commons-util-1.0.2.jar"/>
	<classpathentry kind="lib" path="lib/commons-httpclient-3.1.jar"/>
	<classpathentry kind="lib" path="lib/commons-logging-1.1.jar"/>
	<classpathentry kind="lib" path="lib/commons-codec-1.4.jar"/>
	<classpathentry kind="lib" path="lib/encog.jar"/>
	<classpathentry kind="lib" path="lib/microba.jar"/>
	<classpathentry kind="lib" path="lib/blas.jar"/>
	<classpathentry kind="lib" path="lib/mail.jar"/>
	<classpathentry kind="lib" path="lib/jdbc/mysql-connector-java-5.1.17-bin.jar"/>
	<classpathentry kind="lib" path="lib/jdbc/postgresql-9.1-901.jdbc3.jar"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
	<classpathentry exported="true" kind="lib" path="lib/commons-lang-2.4.jar"/>
	<classpathentry kind="lib" path="lib/groovy-all-1.7.7.jar"/>
	<classpathentry kind="lib" path="lib/ivy-2.2.0.jar"/>
	<classpathentry kind="output" path="build"/>
</classpath>

Marco_Boeck

Hi,

your .classpath file is missing the entries for the rapidminer.jar and the launcher.jar

Regards,
Marco