java.lang.RuntimeException: org.eclipse.core.runtime.CoreException: org.eclipse.core.runtime.AssertionFailedException: null argument:

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  • java.lang.RuntimeException: org.eclipse.core.runtime.CoreException: org.eclipse.core.runtime.AssertionFailedException: null argument: at org.python.pydev.navigator.PythonModelProvider.doWrapPossibleSourceFolder(PythonModelProvider.java:474) at org.python.pydev.navigator.PythonModelProvider.doWrap(PythonModelProvider.java:415) at org.python.pydev.navigator.PythonModelProvider.wrapChildren(PythonModelProvider.java:372) at org.python.pydev.navigator.PythonModelProvider.convertToPythonElementsAddOrRemove(PythonModelProvider.java:273) at org.python.pydev.navigator.PythonModelProvider.getPipelinedChildren(PythonModelProvider.java:72) at org.python.pydev.navigator.PythonModelProvider.getPipelinedElements(PythonModelProvider.java:86) at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.pipelineElements(NavigatorContentServiceContentProvider.java:363) at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getElements(NavigatorContentServiceContentProvider.java:170) at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:937) at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:703) at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1330) at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:385) at org.eclipse.jface.viewers.AbstractTreeViewer.getFilteredChildren(AbstractTreeViewer.java:636) at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:602) at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:799) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:776) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:634) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1578) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1575) at org.eclipse.jface.viewers.AbstractTreeViewer.expandToLevel(AbstractTreeViewer.java:1052) at org.python.pydev.navigator.PyPackageStateSaver.restoreState(PyPackageStateSaver.java:76) at org.python.pydev.navigator.PythonModelProvider.restoreState(PythonModelProvider.java:183) at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.restoreState(SafeDelegateTreeContentProvider.java:156) at org.eclipse.ui.internal.navigator.extensions.NavigatorContentExtension.applyMemento(NavigatorContentExtension.java:317) at org.eclipse.ui.internal.navigator.extensions.NavigatorContentExtension.restoreState(NavigatorContentExtension.java:299) at org.eclipse.ui.internal.navigator.NavigatorContentService$1.run(NavigatorContentService.java:887) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.ui.internal.navigator.NavigatorContentService.restoreState(NavigatorContentService.java:898) at org.python.pydev.navigator.ui.PydevPackageExplorer.createPartControl(PydevPackageExplorer.java:122) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:371) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:230) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:594) at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:306) at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:531) at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:668) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:576) at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568) at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:271) at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:964) at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2593) at org.eclipse.ui.internal.WorkbenchWindow$25.run(WorkbenchWindow.java:2869) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2850) at org.eclipse.ui.internal.WorkbenchWindow$19.runWithException(WorkbenchWindow.java:2167) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803) at org.eclipse.ui.internal.Workbench$27.runWithException(Workbench.java:1361) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2293) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) Caused by: org.eclipse.core.runtime.CoreException: org.eclipse.core.runtime.AssertionFailedException: null argument: at org.python.pydev.plugin.nature.PythonNatureStore.getPathPropertyFromXml(PythonNatureStore.java:608) at org.python.pydev.plugin.nature.PythonNatureStore.getPathProperty(PythonNatureStore.java:176) at org.python.pydev.plugin.nature.PythonPathNature.getProjectSourcePath(PythonPathNature.java:247) at org.python.pydev.plugin.nature.PythonPathNature.getProjectSourcePathSet(PythonPathNature.java:234) at org.python.pydev.navigator.PythonModelProvider.doWrapPossibleSourceFolder(PythonModelProvider.java:467) ... 80 more Caused by: org.eclipse.core.runtime.AssertionFailedException: null argument: at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:86) at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:74) at org.python.pydev.plugin.nature.PythonNatureStore.getRootNodeInXml(PythonNatureStore.java:291) at org.python.pydev.plugin.nature.PythonNatureStore.findPropertyNodeInXml(PythonNatureStore.java:329) at org.python.pydev.plugin.nature.PythonNatureStore.getPathPropertyFromXml(PythonNatureStore.java:596) ... 84 more

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