[pydev - Users] pydev package explorer broken

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By: nwilbert

Today I updated some Eclipse packages and now the Pydev package explorer does
not display anything anymore. Any ideas how to fix this? I am on the latest
version of Pydev Extensions.

Thanks!

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By: fabioz

You're in the latest stable or nightly build?

Do you have some error in your error log? See:
http://pydev.sourceforge.net/faq.html#how_do_i_report_a_bug for details on how
to find it.

Cheers,

Fabio

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By: nwilbert

Latest stable Eclipse and PyDev versions on Vista 32bit.

Might be just my bad luck, I guess I will have to reinstall PyDev.

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By: fabioz

Just a doubt:

Do the projects appear in the resource navigator? Is it possible that you have
some active filter that's filtering them?

Cheers,

Fabio

p.s.: Did you find anything in the error log?

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Read and respond to this message at:
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By: nwilbert

I didn't setup any custom filters before. I also tried disabling all filters,
no effect.

I also reinstalled PyDev, no difference either.

Here is the last entry from the log-file:

!ENTRY org.eclipse.ui.navigator 4 0 2009-06-25 14:46:01.485
!MESSAGE Could not acquire children from extension:
org.eclipse.ui.navigator.resourceContent
!STACK 0
java.lang.RuntimeException: Error on document:null project:P/Playground
        at org.python.pydev.plugin.nature.PythonNatureStore.getPropertyFromXml(PythonNa
tureStore.java:570)
        at org.python.pydev.plugin.nature.PythonNature.getProjectInterpreterName(Python
Nature.java:1068)
        at org.python.pydev.plugin.nature.PythonNature.getProjectInterpreter(PythonNatu
re.java:1019)
        at org.python.pydev.plugin.nature.PythonNature.getConfigErrorsAndInfo(PythonNat
ure.java:1094)
        at org.python.pydev.navigator.ProjectInfoForPackageExplorer.getConfigErrorsAndI
nfo(ProjectInfoForPackageExplorer.java:79)
        at org.python.pydev.navigator.ProjectInfoForPackageExplorer.recreateInfo(Projec
tInfoForPackageExplorer.java:53)
        at org.python.pydev.navigator.ProjectInfoForPackageExplorer.<init>(ProjectInfoF
orPackageExplorer.java:45)
        at org.python.pydev.navigator.PythonBaseModelProvider.getProjectInfo(PythonBase
ModelProvider.java:383)
        at org.python.pydev.navigator.PythonBaseModelProvider.getProjectSourceFolders(P
ythonBaseModelProvider.java:397)
        at org.python.pydev.navigator.PythonBaseModelProvider.getResourceInPythonModel(
PythonBaseModelProvider.java:342)
        at org.python.pydev.navigator.PythonBaseModelProvider.getResourceInPythonModel(
PythonBaseModelProvider.java:328)
        at org.python.pydev.navigator.PythonModelProvider.wrapChildren(PythonModelProvi
der.java:429)
        at org.python.pydev.navigator.PythonModelProvider.convertToPythonElementsAddOrR
emove(PythonModelProvider.java:335)
        at org.python.pydev.navigator.PythonModelProvider.getPipelinedChildren(PythonMo
delProvider.java:104)
        at org.python.pydev.navigator.PythonModelProvider.getPipelinedElements(PythonMo
delProvider.java:132)
        at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.pip
elineElements(NavigatorContentServiceContentProvider.java:363)
        at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.get
Elements(NavigatorContentServiceContentProvider.java:170)
        at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.computeSaveables
(NavigatorSaveablesService.java:235)
        at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.recomputeSaveabl
esAndNotify(NavigatorSaveablesService.java:501)
        at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.onVisibilityOrAc
tivationChange(NavigatorSaveablesService.java:595)
        at org.eclipse.ui.internal.navigator.VisibilityAssistant.notifyClients(Visibili
tyAssistant.java:125)
        at org.eclipse.ui.internal.navigator.VisibilityAssistant.onExtensionActivation(
VisibilityAssistant.java:225)
        at org.eclipse.ui.internal.navigator.NavigatorActivationService.notifyListeners
(NavigatorActivationService.java:256)
        at org.eclipse.ui.internal.navigator.NavigatorActivationService.setActive(Navig
atorActivationService.java:188)
        at org.eclipse.ui.internal.navigator.NavigatorActivationService.activateExtensi
ons(NavigatorActivationService.java:321)
        at org.eclipse.ui.internal.navigator.filters.UpdateActiveExtensionsOperation.ex
ecute(UpdateActiveExtensionsOperation.java:119)
        at org.eclipse.ui.internal.navigator.filters.CommonFilterSelectionDialog.okPres
sed(CommonFilterSelectionDialog.java:231)
        at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:472)
        at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
        at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
        at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
        at org.eclipse.jface.window.Window.open(Window.java:801)
        at org.eclipse.ui.internal.navigator.filters.SelectFiltersAction.run(SelectFilt
ersAction.java:52)
        at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
        at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(Action
ContributionItem.java:583)
        at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionI
tem.java:500)
        at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContribu
tionItem.java:411)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490)
        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(EclipseAp
pLauncher.java:79)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
        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.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(PythonNatu
reStore.java:372)
        at org.python.pydev.plugin.nature.PythonNatureStore.findPropertyNodeInXml(Pytho
nNatureStore.java:410)
        at org.python.pydev.plugin.nature.PythonNatureStore.getPropertyFromXml(PythonNa
tureStore.java:558)
        ... 64 more


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Read and respond to this message at:
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By: nwilbert

Actually I was unable to uninstall PyDev, when I uninstall it via Help->Software
Updates... it stays installed. Just the uninstall button is grayed out
afterwards.

All projects are displayed normally in the normal navigator view.

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Read and respond to this message at:
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By: fabioz

Ok, I was able to reproduce your problem here from the error log info:

It seems Pydev is not dealing well with problems in the .pydevproject file (in
that case, your .pydevproject in your Playground project).

I've reproduced the problem by creating a non-parseable xml file as .pydevproject
(which I believe is your problem). Can you create a bug-report with that and
attach your .project and .pydevproject files in that project so that I can check
if that's indeed the problem?

Cheers,

Fabio



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Read and respond to this message at:
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By: nwilbert

Since I needed a quick fix I deleted all the metadata in my workspace.

Now (after setting everything up) everything seems to work fine. According to
the log file there are no more problems regarding the project that seemed to
cause trouble.

So it appears that this was somehow caused by the Eclipse update system (this
seems to be a constant source of grief, hopefully it works better in Eclipse
3.5).

Let me know if I should still file a bug report. I guess uploading the project
files doesn't make much sense now.

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Read and respond to this message at:
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By: fabioz

No need to create that bug... Anyways, I've just fixed the problem when the
valid xml file is there (which was a real problem anyways).

That's available in the latest nightly build (svn: 2825)

Cheers,

Fabio

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Read and respond to this message at:
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By: nwilbert

Thanks!

Cheers,
Niko

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