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The operator class 'h2o:deep_learning' is unknown. Possibly you must install a plugin for operators

DekwoKybonDekwoKybon Member Posts: 9 Contributor II
edited November 2018 in Help

Hi all,


My RapidMiner process works fine in RapidMiner Studio.

However, if I try to run it from Java I get an error message saying "a dummy operator" cannot be executed, in my case it's the Deep Learning operator.

I had this problem before with Cross Validation Operator but by searching the posts here I found out that I had to register the extra plugins. That did solve my problem with the Cross Validation operator but unfortunately the problem with the H20 Deep Learning Operator remains.

 

 

RapidMiner.setExecutionMode(RapidMiner.ExecutionMode.COMMAND_LINE);
Plugin.addAdditionalExtensionDir("/opt/rapidminer/lib/plugins");
Plugin.setInitPlugins(true);
RapidMiner.init();

// loads the process from the repository (if you do not have one, see alternative below)
RepositoryLocation pLoc = new RepositoryLocation("//Local Repository/processes/STELA_Studieduur_Learner");
ProcessEntry pEntry = (ProcessEntry) pLoc.locateEntry();
String processXML = pEntry.retrieveXML();
Process myProcess = new Process(processXML);
myProcess.setProcessLocation(new RepositoryProcessLocation(pLoc));

IOContainer ioResult = myProcess.run();

 

The JAR file is present in the plugins directory however: /opt/rapidminer/lib/plugins/h2o-7.3.0-all.jar

I also tried to add it directly to my classpath without succes.

 

I don't know if this is a related issue but I also get an 'Caused by: java.lang.ClassNotFoundException: com.rapidminer.tools.nexus.NexusCommunicationException' and a warning : 'Plugin initializer com.rapidminer.PluginInitCloudExecution.initPlugin of Plugin Cloud Execution caused an error: null '

 

Any ideas on how to solve this?

 

Best regards,

Wouter

Tagged:

Best Answer

  • DekwoKybonDekwoKybon Member Posts: 9 Contributor II
    Solution Accepted

    Hey Marcel,

     

    I'm beginning to think that the error is unrelated to the H20 deep learning operator after all. 

    I started over with a very small project that is based off the one I was using before but stripping it from all the whistles and bells. 

     

    Seems the error already occurs earlier in the process during the preprocessing of my data.RapidMiner keeps complaining about an unconnected input. I use a "Set Macros" operator to make selections possible in subprocesses but I get warnings, nevertheless the process runs fine. 

     

    Anyway, I'm first going to try to get process run without warnings. 

     

    Thanks for your assistance,

    and Merry Christmas! :-)

    Wouter

     

     

     

Answers

  • mmichelmmichel Employee-RapidMiner, Member Posts: 129 RM Engineering

    Hi Wouter,

     

     

    can you please attach the corresponding studio log? Are you using our published 7.3.1 core jar file as dependency?

     

    Cheers,

    Marcel

  • DekwoKybonDekwoKybon Member Posts: 9 Contributor II

    Hi Marcel,

     

    I'm not sure I'm using the 'published 7.3.1 core' jar file as a dependency.

    I manually added h2o-7.3.0-all.jar to the classpath. This file is located in my Rapidminer Studio installation folder under /opt/rapidminer/lib/plugins.

     

    Now, I removed the expliciet addittion of that jar file and now the errors have changed. The log file will reflect this.

    If you need anything else please let me know.

     

    Wouter 

    PS: I could not attach the files since I get an error "The contents of the attachment doesn't match its file type." 

    So here is the log file pasted:

    **********************************************************************************************************************

    Dec 21, 2016 5:04:02 PM com.rapidminer.tools.I18N <clinit>
    INFO: Set locale to en.
    Dec 21, 2016 5:04:03 PM com.rapidminer.core.license.ProductConstraintManager initialize
    INFO: Initializing license manager.
    Dec 21, 2016 5:04:03 PM com.rapidminer.core.license.ProductConstraintManager initialize
    INFO: Using default license location.
    Dec 21, 2016 5:04:03 PM com.rapidminer.core.license.ProductConstraintManager initialize
    INFO: Registering default product.
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Advanced File Connectors
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Concurrency
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Cloud Connectivity
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Data Editor
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Productivity
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Professional
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Operator Recommender
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Remote Repository
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Legacy Result Access
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: JDBC Connectors
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Cloud Execution
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Process Scheduling
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Social Media
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: H2O
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: VISUALIZATIONS
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Information Selection
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: R Scripting
    Dec 21, 2016 5:04:03 PM com.rapidminer.tools.plugin.Plugin registerPlugins
    INFO: Register plugin: Weka
    Dec 21, 2016 5:04:04 PM com.rapidminer.tools.config.ConfigurationManager register
    INFO: Registered configurator Twitter Connection.
    Dec 21, 2016 5:04:05 PM com.rapidminer.tools.config.ConfigurationManager register
    INFO: Registered configurator Salesforce Connection.
    Dec 21, 2016 5:04:05 PM com.rapidminer.tools.config.ConfigurationManager register
    INFO: Registered configurator Amazon S3 Connection.
    Dec 21, 2016 5:04:05 PM com.rapidminer.tools.config.ConfigurationManager register
    INFO: Registered configurator Dropbox Connection.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver org.mariadb.jdbc.Driver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver org.postgresql.Driver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver net.sourceforge.jtds.jdbc.Driver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver org.hsqldb.jdbcDriver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties <init>
    WARNING: Missing database driver class name for ODBC Bridge (e.g. Access)
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties <init>
    WARNING: Missing database driver class name for Ingres
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver net.ucanaccess.jdbc.UcanaccessDriver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver net.sourceforge.jtds.jdbc.Driver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver oracle.jdbc.driver.OracleDriver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:06 PM com.rapidminer.extension.jdbc.tools.jdbc.JDBCProperties registerDrivers
    INFO: JDBC driver com.microsoft.sqlserver.jdbc.SQLServerDriver not found. Probably the driver is not installed.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin callInitMethod
    WARNING: Plugin initializer com.rapidminer.PluginInitCloudExecution.initPlugin of Plugin Cloud Execution caused an error: null
    java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.rapidminer.tools.plugin.Plugin.callInitMethod(Plugin.java:1150)
    at com.rapidminer.tools.plugin.Plugin.callPluginInitMethods(Plugin.java:1119)
    at com.rapidminer.tools.plugin.Plugin.initPlugins(Plugin.java:1089)
    at com.rapidminer.tools.plugin.Plugin.initAll(Plugin.java:1310)
    at com.rapidminer.RapidMiner.init(RapidMiner.java:634)
    at com.rapidminer.RapidMiner.init(RapidMiner.java:573)
    at be.kul.mai.learninganalytics.LAEngine.runEngine(LAEngine.java:32)
    at be.kul.mai.learninganalytics.LAEngineTest.runEngine(LAEngineTest.java:22)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
    Caused by: java.lang.NoClassDefFoundError: com/rapidminer/tools/nexus/NexusCommunicationException
    at com.rapidminer.PluginInitCloudExecution.initPlugin(PluginInitCloudExecution.java:111)
    ... 40 more
    Caused by: java.lang.ClassNotFoundException: com.rapidminer.tools.nexus.NexusCommunicationException
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at com.rapidminer.tools.plugin.PluginClassLoader.loadClass(PluginClassLoader.java:131)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 41 more

    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension VISUALIZATIONS was loaded in 6ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Information Selection was loaded in 35ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Weka was loaded in 54ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Concurrency was loaded in 157ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Productivity was loaded in 158ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Professional was loaded in 160ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Remote Repository was loaded in 166ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Social Media was loaded in 172ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension rmx_cloud_execution could not be loaded successfully after 179ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Advanced File Connectors was loaded in 187ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Operator Recommender was loaded in 213ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension R Scripting was loaded in 221ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Legacy Result Access was loaded in 230ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Cloud Connectivity was loaded in 262ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension JDBC Connectors was loaded in 311ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Process Scheduling was loaded in 321ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension H2O was loaded in 504ms.
    Dec 21, 2016 5:04:07 PM com.rapidminer.tools.plugin.Plugin initAll
    INFO: Extension Data Editor was loaded in 599ms.
    Dec 21, 2016 5:04:11 PM com.rapidminer.tools.math.similarity.DistanceMeasureHelper updateMeasure
    WARNING: While updating distance measure: com.rapidminer.parameter.UndefinedParameterError: A value for the parameter 'measure_types' of operator 'Expected integer but found 'null'.' must be specified! {2}
    Dec 21, 2016 5:04:11 PM com.rapidminer.tools.math.similarity.DistanceMeasureHelper updateMeasure
    WARNING: While updating distance measure: com.rapidminer.parameter.UndefinedParameterError: A value for the parameter 'measure_types' of operator 'Expected integer but found 'null'.' must be specified! {2}
    Dec 21, 2016 5:04:11 PM com.rapidminer.tools.OperatorService parseOperators
    WARNING: Cannot create operator description: rmx_prules : weka_sel
    java.lang.NoClassDefFoundError: main/core/exception/NotEnoughInstancesException
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at com.rapidminer.operator.OperatorDescription.<init>(OperatorDescription.java:137)
    at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:354)
    at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:346)
    at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:346)
    at com.rapidminer.tools.OperatorService.parseOperators(OperatorService.java:320)
    at com.rapidminer.tools.OperatorService.registerOperators(OperatorService.java:267)
    at com.rapidminer.tools.plugin.Plugin.registerOperators(Plugin.java:633)
    at com.rapidminer.tools.plugin.Plugin.registerAllPluginOperators(Plugin.java:1034)
    at com.rapidminer.tools.OperatorService.init(OperatorService.java:174)
    at com.rapidminer.RapidMiner.init(RapidMiner.java:638)
    at com.rapidminer.RapidMiner.init(RapidMiner.java:573)
    at be.kul.mai.learninganalytics.LAEngine.runEngine(LAEngine.java:32)
    at be.kul.mai.learninganalytics.LAEngineTest.runEngine(LAEngineTest.java:22)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
    Caused by: java.lang.ClassNotFoundException: main.core.exception.NotEnoughInstancesException
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at com.rapidminer.tools.plugin.PluginClassLoader.loadClass(PluginClassLoader.java:131)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 43 more

    Dec 21, 2016 5:04:11 PM com.rapidminer.tools.math.similarity.DistanceMeasureHelper updateMeasure
    WARNING: While updating distance measure: com.rapidminer.parameter.UndefinedParameterError: A value for the parameter 'measure_types' of operator

    **** This error was repeated many times, also got error message that my message can't exceed 20000 char.

    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Load configuration for Amazon S3 Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ClientConfigurationManager loadAllParameters
    INFO: No configuration file found for Amazon S3 Connection
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Loaded configurations for 0 objects of type Amazon S3 Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Load configuration for Dropbox Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ClientConfigurationManager loadAllParameters
    INFO: No configuration file found for Dropbox Connection
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Loaded configurations for 0 objects of type Dropbox Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Load configuration for Salesforce Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ClientConfigurationManager loadAllParameters
    INFO: No configuration file found for Salesforce Connection
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Loaded configurations for 0 objects of type Salesforce Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Load configuration for Twitter Connection.
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ClientConfigurationManager loadAllParameters
    INFO: No configuration file found for Twitter Connection
    Dec 21, 2016 5:04:15 PM com.rapidminer.tools.config.ConfigurationManager loadConfiguration
    INFO: Loaded configurations for 0 objects of type Twitter Connection.

    **********************************************************************************************************************

     

  • mmichelmmichel Employee-RapidMiner, Member Posts: 129 RM Engineering

    Hi Wouter,

     

    the NexusCommunicationException is not part of the open core. This is the reason why this class cannot be found. I would suggest to simply remove the extension - but this error should not affect the process execution.

    The other error seems to be related to the Information Selection extension. You may also want to add this extension to your classpath.

     

    Cheers,

    Marcel

  • DekwoKybonDekwoKybon Member Posts: 9 Contributor II

    Hi Marcel,

     

    I tried out your suggestion by going to the recommend webpage you gave.
    I downloaded rmx_prules-ANY-7.0.0.jar and added that to my classpath.

     

    Now, It definitely changed something but now I get a new error:

     

    Failed to register operator: rmx_prules : VQ
    com.rapidminer.operator.OperatorCreationException: Operator cannot be constructed: 'VQ(com.rapidminer.ispr.operator.learner.clustering.VQOperator)': class "com.rapidminer.operator.ports.metadata.IsConnectedPrecondition"'s signer information does not match signer information of other classes in the same package

     

    which was caused by

     

    java.lang.SecurityException: class "com.rapidminer.operator.ports.metadata.IsConnectedPrecondition"'s signer information does not match signer information of other classes in the same package

     

    I'm not sure what this means :-)

    Wouter

    PS: attached you find the log file

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