"No editor descriptor" error after CUDA plugin installation + Eclipse update

Question

I had installed the CUDA 10 Eclipse plugin via my installed Ecplise's UI. Later on, I updated Eclipse to version 2020.09. Now, when I try to open a .cu file, I get an error saying:

No editor descriptor for id com.nvidia.cuda.ui.editor.CudaEditor

With the following stack trace:

java.lang.Exception
    at org.eclipse.ui.internal.EditorReference.createErrorPart(EditorReference.java:332)
    at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:313)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPart(CompatibilityPart.java:300)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPart(CompatibilityEditor.java:61)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:338)
    at jdk.internal.reflect.GeneratedMethodAccessor70.invoke(Unknown Source)
    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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:999)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:964)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:140)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:405)
    at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:332)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:202)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:91)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:60)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:42)
    at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:132)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:999)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:659)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:765)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:736)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:730)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:714)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.createElement(PartServiceImpl.java:1305)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1266)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:397)
    at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:283)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3151)
    at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3102)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3100)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3070)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3061)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:569)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:524)
    at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:103)
    at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:96)
    at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:215)
    at org.eclipse.ui.navigator.CommonNavigatorManager$1.open(CommonNavigatorManager.java:183)
    at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:802)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174)
    at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:799)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1118)
    at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:454)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:270)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:310)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5745)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1427)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5013)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4507)
    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:153)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150)
    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:62)
    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:657)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1438)

How can I avoid this error and just make the .cu file open normally?

Answer 1

I'm not sure why I got this problem, but here's how I've overcome it:

1. On the menus, navigate to Window | Preferences
2. In the preferences dialog, navigate to General | Content Types
3. In the content type tree, navigate to Text > C Source File > C++ Source File and click it
4. Near the file association box, click Add...
5. Type *.cu in the dialog box and press Enter.
6. Exit the preferences dialog, close the .cu file and open it again.

That should do it.

You can do the same for .cuh files under Text > C Source File > C++ Source File > C++ Header File.