Posted by gustavowd on 2021-02-21 19:26

Hi,

I used the openSTM32 pluggins for eclipse for many years, and it always worked like a charm.

Now i’m using a new PC and i have installed the Eclipse IDE 2020-12.
After i installed as usual the openSTM32 plugin, based on the URL:
http://ac6-tools.com/Eclipse-updates/org.openstm32.system-workbench.update-site-v2

The project compiles perfeclly. However, when i try to setup the debug environment by the ac6 STM32 Debugging, i get this error message:

An error has occurred. See error log for more details.
org/eclipse/cdt/launch/ui/CMainTab

The log says:

ENTRY org.eclipse.ui 4 0 2021-02-21 14:00:13.956

MESSAGE Unhandled event loop exception

STACK 0

java.lang.NoClassDefFoundError: org/eclipse/cdt/launch/ui/CMainTab
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:294)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:718)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:641)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:609)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:589)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:568)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:346)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:398)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:477)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:171)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at fr.ac6.mcu.debug.ui.MCUGDBJtagLaunchConfigurationTabGroup.getMainTab(MCUGDBJtagLaunchConfigurationTabGroup.java:98)
at fr.ac6.mcu.debug.ui.MCUGDBJtagLaunchConfigurationTabGroup.createTabs(MCUGDBJtagLaunchConfigurationTabGroup.java:41)
at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupWrapper.createTabs(LaunchConfigurationTabGroupWrapper.java:133)
at org.eclipse.debug.internal.ui.launchConfigurations.CreateLaunchConfigurationAction.performAction(CreateLaunchConfigurationAction.java:78)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74)
at org.eclipse.debug.internal.ui.launchConfigurations.AbstractLaunchConfigurationAction.run(AbstractLaunchConfigurationAction.java:105)
at org.eclipse.ui.actions.BaseSelectionListenerAction.runWithEvent(BaseSelectionListenerAction.java:171)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5785)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1427)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5048)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4526)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:823)
at org.eclipse.jface.window.Window.open(Window.java:799)
at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.open(LaunchConfigurationsDialog.java:1232)
at org.eclipse.debug.ui.DebugUITools.lambda$1(DebugUITools.java:629)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74)
at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:635)
at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:573)
at org.eclipse.debug.ui.actions.OpenLaunchDialogAction.run(OpenLaunchDialogAction.java:85)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5785)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1427)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5048)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4526)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1157)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1461)
at org.eclipse.equinox.launcher.Main.main(Main.java:1434)
Caused by: java.lang.ClassNotFoundException: org.eclipse.cdt.launch.ui.CMainTab cannot be found by fr.ac6.mcu.debug_2.5.0.201904120827
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:516)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:171)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)

I tried everything, without success. What can i do?

Thansk,
Gustavo