#13 Project Creation Error

[Barry Burns]

I have tried this on two computers and 2 different versions of eclipse (3.5 and 3.6). I am running on a Windows 7 x64 machine and i do have JRE installed and working (I have several other apps that rely on JRE).

When I attempt to create a new project via the following steps:

File->New->C++ Project

In the pop-up dialog I provide a unique project name and select AVR Cross Target Application->Empty Project an then "Finish"

At that time, I get a dialog message stating:
"Project cannot be created
Reason:
Internal Error:"

If I select details on the dialog message, it says:
"java.lang.NullPointerException"

What am I doing wrong?

B2

[Thomas Holland]

Hi,

please attach the Eclipse error log to this tracker item (or send it to me via email: thomas@innot.de)

I will have a look to determine where the NullPointerException is coming from.

To get the error log in Helios (Eclipse 3.6): Help -> About Eclipse -> Installation Details -> Configuration -> View Error Log

Thomas

[Anonymous]

!SESSION 2010-07-22 21:35:05.249 -----------------------------------------------
eclipse.buildId=I20100608-0911
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=ru_RU
Framework arguments: -product org.eclipse.epp.package.cpp.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.cpp.product

!ENTRY org.eclipse.ui.workbench 4 0 2010-07-22 21:35:07.963
!MESSAGE Unable to create view ID de.innot.avreclipse.views.supportedmcus: An unexpected exception was thrown.
!STACK 0
java.lang.NullPointerException
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getWinAVRBasePath(SystemPathsWin32.java:127)
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getWinAVRPath(SystemPathsWin32.java:93)
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getSystemPath(SystemPathsWin32.java:64)
at de.innot.avreclipse.core.paths.SystemPathHelper.getPath(SystemPathHelper.java:102)
at de.innot.avreclipse.core.paths.AVRPathProvider.getPath(AVRPathProvider.java:63)
at de.innot.avreclipse.core.toolinfo.GCC.getToolPath(GCC.java:79)
at de.innot.avreclipse.core.toolinfo.GCC.runCommand(GCC.java:238)
at de.innot.avreclipse.core.toolinfo.GCC.getNameAndVersion(GCC.java:198)
at de.innot.avreclipse.ui.views.supportedmcu.MCUListColumn$2.getName(MCUListColumn.java:85)
at de.innot.avreclipse.ui.views.supportedmcu.MCUListColumn.addColumn(MCUListColumn.java:250)
at de.innot.avreclipse.ui.views.supportedmcu.MCUListView.createPartControl(MCUListView.java:132)
at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375)
at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.WorkbenchPage$ActivationList.setActive(WorkbenchPage.java:4218)
at org.eclipse.ui.internal.WorkbenchPage$18.runWithException(WorkbenchPage.java:3277)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbench.java:1566)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2537)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:369)
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:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

!ENTRY org.eclipse.jface 4 2 2010-07-22 21:37:05.350
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.NullPointerException
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getWinAVRBasePath(SystemPathsWin32.java:127)
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getWinAVRPath(SystemPathsWin32.java:93)
at de.innot.avreclipse.core.paths.win32.SystemPathsWin32.getSystemPath(SystemPathsWin32.java:64)
at de.innot.avreclipse.core.paths.SystemPathHelper.getPath(SystemPathHelper.java:102)
at de.innot.avreclipse.core.paths.AVRPathManager.getSystemPath(AVRPathManager.java:143)
at de.innot.avreclipse.core.paths.AVRPathManager.getPath(AVRPathManager.java:101)
at de.innot.avreclipse.core.paths.AVRPathManager.isValid(AVRPathManager.java:237)
at de.innot.avreclipse.ui.preferences.AVRPathsFieldEditor.updateTableItem(AVRPathsFieldEditor.java:378)
at de.innot.avreclipse.ui.preferences.AVRPathsFieldEditor.doLoad(AVRPathsFieldEditor.java:243)
at org.eclipse.jface.preference.FieldEditor.load(FieldEditor.java:500)
at org.eclipse.jface.preference.FieldEditorPreferencePage.initialize(FieldEditorPreferencePage.java:307)
at org.eclipse.jface.preference.FieldEditorPreferencePage.createContents(FieldEditorPreferencePage.java:233)
at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232)
at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1501)
at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1258)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1252)
at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:673)
at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:704)
at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:867)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:865)
at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1205)
at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1230)
at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:251)
at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:245)
at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:419)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
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.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:369)
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:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

[Thomas Holland]

Thanks for the log, Barry.

I have already found the problem. It is an inadequate fix for bug 2872447: "getWinAVRBasePath throws exception on Vista 64".

I thought I had this fixed (with 2.3.2), but I noticed that I never fully finished the fix. As I don't have a 64bit Windows I didn't test the fix before releasing it.

I try to fix the bug over the weekend. In the meantime you could try the following workarounds:

1. Set the flag "Disable search for system paths at startup" on the AVR -> Paths preference page and manually set the paths.

2. If you can't set the flag due to NullPointerExceptions you could try to hack this flag. With Eclipse not running edit the file '{Workspace}.metadata.plugins\org.eclipse.core.runtime.settings\de.innot.avreclipse.core.prefs' and add/edit the following line: 'avrpaths/NoScanAtStartup=true'
   Once you have done this you can restart Eclipse and again set the paths manually in the preferences.

I have just tested this and it seems that with the workaround the offending code does not get called.

[Thomas Holland]

Barry,
I have uploaded a (hopefully) fixed version of the Plugin here:

http://avr-eclipse.sourceforge.net/previews/avreclipse-p2-repository-2.3.4.20100727betaNGT.zip

Could you please install this on your 64bit Windows, go to the AVR -> Paths preferences, click on one of the paths (e.g. AVR-GCC) and change its property back to "System".

Hopefully this should work now, but I would really appreciate your feedback before making an official release.

Thomas