I have installed KNIME Javascript View(Labs) extension to use Data explorer node. I have configured this node successfully but when I am clicking Interactive view of data explorer node, I am getting Unhandled event loop exception. I am using v5.3.0. Below are additional exception trace track of this error. java.lang.NullPointerException: Cannot invoke “org.knime.gateway.impl.webui.service.events.SelectionEventBus.addSelectionEventListener(java.util.function.Consumer)” because “org.knime.js.cef.wizardnodeview.CEFWizardNodeView.selectionEventBus” is null at org.knime.js.cef.wizardnodeview.CEFWizardNodeView.setupSelectionEvents(CEFWizardNodeView.java:204) at org.knime.js.cef.wizardnodeview.CEFWizardNodeView.initializeJsonRpcJavaBrowserCommunication(CEFWizardNodeView.java:243) at org.knime.js.swt.wizardnodeview.WizardNodeView.lambda$2(WizardNodeView.java:389) at org.knime.js.swt.wizardnodeview.WizardNodeView$11.completed(WizardNodeView.java:463) at com.equo.chromium.swt.internal.Chromium.lambda$9(Chromium.java:870) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4047) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3663) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:152) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173) at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:211) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588) at org.eclipse.equinox.launcher.Main.run(Main.java:1459)

Unhandled event loop exception - Data Explorer Node (while clicking Interactive view of data explorer node)

ArjenEX July 22, 2024, 11:55pm 3

Are you using classic UI by any chance? The error code looks very similar to an earlier reported issue that affects everybody. Try the solution mentioned here:

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Views: Configuration Dialog and Interactive views empty in 5.3