Error creating new project - Failed while installing Sightly 1.1

[jgrandscrutton]

Using latest Eclipse, dev tools and archetype I get a "Failed while installing Sightly 1.1" error. Here's the Eclipse log info:

!ENTRY org.eclipse.m2e.logback.appender 2 0 2016-06-08 08:28:47.909
!MESSAGE Manifest com.adobe.patnersuccess:contentportal.core:bundle:0.0.1-SNAPSHOT : Unused Private-Package instructions, no such package(s) on the class path: [!*]

!ENTRY org.eclipse.m2e.logback.appender 2 0 2016-06-08 08:28:47.909
!MESSAGE Manifest com.adobe.patnersuccess:contentportal.core:bundle:0.0.1-SNAPSHOT : The JAR is empty: The instructions for the JAR named com.adobe.patnersuccess.contentportal.core did not cause any content to be included, this is likely wrong

!ENTRY org.eclipse.wst.common.project.facet.core 4 0 2016-06-08 08:28:48.379
!MESSAGE Failed while installing Sightly 1.1.
!STACK 0
java.lang.IllegalStateException: Preference node "org.eclipse.wst.validation" has been removed.
at org.eclipse.core.internal.preferences.EclipsePreferences.checkRemoved(EclipsePreferences.java:200)
at org.eclipse.core.internal.resources.ProjectPreferences.internalGet(ProjectPreferences.java:429)
at org.eclipse.core.internal.preferences.EclipsePreferences.getInt(EclipsePreferences.java:585)
at org.eclipse.wst.validation.internal.PreferencesWrapper$PreferencesWrapperPersistent.getInt(PreferencesWrapper.java:124)
at org.eclipse.wst.validation.internal.ValPrefManagerProject.loadProjectPreferences(ValPrefManagerProject.java:204)
at org.eclipse.wst.validation.internal.ValManager.getProjectPreferences(ValManager.java:611)
at org.eclipse.wst.validation.internal.ValManager.getProjectPreferences(ValManager.java:592)
at org.apache.sling.ide.eclipse.sightly.internal.SightlyFacetInstallDelegate.execute(SightlyFacetInstallDelegate.java:72)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.callDelegate(FacetedProject.java:1477)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modifyInternal(FacetedProject.java:441)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChangesInternal(FacetedProject.java:1181)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.access$2(FacetedProject.java:1117)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject$1.run(FacetedProject.java:324)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2241)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modify(FacetedProject.java:339)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.installProjectFacet(FacetedProject.java:255)
at org.apache.sling.ide.eclipse.core.ConfigurationHelper.convertToContentPackageProject(ConfigurationHelper.java:44)
at org.apache.sling.ide.eclipse.m2e.internal.ContentPackageProjectConfigurator.configure(ContentPackageProjectConfigurator.java:89)
at org.eclipse.m2e.core.project.configurator.AbstractLifecycleMapping.configure(AbstractLifecycleMapping.java:120)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$3.call(ProjectConfigurationManager.java:501)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$3.call(ProjectConfigurationManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:494)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.configureNewMavenProjects(ProjectConfigurationManager.java:281)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$1.call(ProjectConfigurationManager.java:168)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$1.call(ProjectConfigurationManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1355)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.importProjects(ProjectConfigurationManager.java:136)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.createArchetypeProjects0(ProjectConfigurationManager.java:830)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$5.call(ProjectConfigurationManager.java:760)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$5.call(ProjectConfigurationManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1355)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.createArchetypeProjects(ProjectConfigurationManager.java:758)
at org.apache.sling.ide.eclipse.ui.wizards.np.AbstractNewMavenBasedSlingApplicationWizard.createProjects(AbstractNewMavenBasedSlingApplicationWizard.java:92)
at org.apache.sling.ide.eclipse.ui.wizards.AbstractNewSlingApplicationWizard$1.execute(AbstractNewSlingApplicationWizard.java:115)
at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:108)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2241)
at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:130)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:463)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:371)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1002)
at org.apache.sling.ide.eclipse.ui.wizards.AbstractNewSlingApplicationWizard.performFinish(AbstractNewSlingApplicationWizard.java:111)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:799)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:429)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3698)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.ui.actions.NewProjectAction.run(NewProjectAction.java:115)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:473)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3698)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)

!ENTRY org.eclipse.m2e.logback.appender 2 0 2016-06-08 08:28:49.133
!MESSAGE Manifest com.adobe.patnersuccess:contentportal.it.tests:bundle:0.0.1-SNAPSHOT : Unused Private-Package instructions, no such package(s) on the class path: [!*]

!ENTRY org.eclipse.m2e.logback.appender 2 0 2016-06-08 08:28:49.134
!MESSAGE Manifest com.adobe.patnersuccess:contentportal.it.tests:bundle:0.0.1-SNAPSHOT : The JAR is empty: The instructions for the JAR named com.adobe.patnersuccess.contentportal.it.tests did not cause any content to be included, this is likely wrong

[jgrandscrutton]

I tried removing "Sling IDE Tools - Sightly
Integration (Optional)" but I still get the same error. It appears that it might still be installed for AEM Developer Tools, but I don't have the option to uninstall it from there:

[Millertaker]

Same Issue , and another ones. To make it solve i have to run the maven build command through terminal : mvn -PautoInstallPackage -PintegrationServer install and them add to the server in eclipse

[CloudNinja42]

Same issue. New to AEM but just wanted to add my observation:
I created a project and then deleted it from Eclipse and the workspace directory - I then got this error when I tried to recreate it. So somewhere Eclipse is picking up something that obstructs the project creation that wasn't in the workspace directory. When I create projects with new names it works 100%.

[CloudNinja42]

On retrying the same project name for the n-th time, it actually worked. But yeah, there is definitely something wrong here - but unfortunately I can't consistently replicate the issue.

[CloudNinja42]

Can this be a problem with Maven itself. Anyhoo - new to AEM so won't speculate..

Two screenshots attached

First Eclipse problem stacktrace:
Description Resource Path Location Type
C:\workspace-shoprite\mywebsite\it.tests\src\main\java\org\myorg\mywebsite\it\tests\HelloWorldModelServerSideTest.java : Unable to load compiled class: org.myorg.mywebsite.it.tests.HelloWorldModelServerSideTest (org.apache.felix:maven-scr-plugin:1.20.0:scr:generate-scr-scrdescriptor:process-classes)

org.apache.maven.plugin.MojoExecutionException: C:\workspace-shoprite\mywebsite\it.tests\src\main\java\org\myorg\mywebsite\it\tests\HelloWorldModelServerSideTest.java : Unable to load compiled class: org.myorg.mywebsite.it.tests.HelloWorldModelServerSideTest
at org.apache.felix.scrplugin.mojo.SCRDescriptorMojo.execute(SCRDescriptorMojo.java:249)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:331)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1362)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1360)
at org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant.build(MojoExecutionBuildParticipant.java:52)
at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:137)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.apache.felix.scrplugin.SCRDescriptorException: Unable to load compiled class: org.myorg.mywebsite.it.tests.HelloWorldModelServerSideTest
at org.apache.felix.scrplugin.helper.ClassScanner.scanSources(ClassScanner.java:148)
at org.apache.felix.scrplugin.SCRDescriptorGenerator.execute(SCRDescriptorGenerator.java:146)
at org.apache.felix.scrplugin.mojo.SCRDescriptorMojo.execute(SCRDescriptorMojo.java:237)
... 32 more
Caused by: java.lang.ClassNotFoundException: org.myorg.mywebsite.it.tests.HelloWorldModelServerSideTest
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.apache.felix.scrplugin.helper.ClassScanner.scanSources(ClassScanner.java:144)
... 34 more
pom.xml /mywebsite.it.tests line 23 Maven Build Problem

[rombert]

@dutoitns - could you file a separate bug report for the issue with Unable to load compiled class: org.myorg.mywebsite.it.tests.HelloWorldModelServerSideTest ?

[CloudNinja42]

I could - but I think the problem is actually something intermittently going wrong with the Maven build.
(and I can't replicate the issue consistently)

[rombert]

Right, I'm also unable to replicate this consistently, which makes debugging and fixing much harder.

[timdonovanuk]

FWIW some graduates I'm training up are also getting these identical errors! They are using an older version of Eclipse, getting them to update to Eclipse 2020 to see..

[gabrielwalt]

Closing this as there hasn't been activity for over a year.

[timdonovanuk]

@gabrielwalt Are you referring to Adobe investment in this plugin, because a truer statement has never been said ;)