heya,
I’ve just installed the latest Vaadin Eclipse plugin on Eclipse 3.5 (Galileo).
From Eclipse, I go to create a new Dynamic Web Project. Under, Configuration, I set it to Vaadin (which changes the Dynamic web module version from 2.4 to 2.5). I click Next through the next few dialogs.
For some reason, after that, I get a message saying “failed while installing dynamic web module 2.5”, then when I click Details, it mentions “null pointer exception”. Any suggestions?
Thanks,
victor
First, try to create a Dynamic Web Project without the Vaadin configuration to see if that works.
I had Eclipse workspace that was somehow mixed up and not even that worked. That I managed to fix by starting Eclipse with ‘-clean’ parameter.
I am having this exact same problem. I can create other projects, just not dynamic web 2.5 as per the vaadin configuration
I am running the linux download of the latest j2ee eclipse eclipse-jee-galileo-linux-gtk-x86_64.tar
I can build and run the examples, but a new project, created as per the settings in the you tube demo on the blog site, and I get the following in my .metadata/.log
!ENTRY org.eclipse.jst.j2ee 4 0 2009-09-23 15:08:42.638
!MESSAGE Exception thrown.
!STACK 0
java.lang.NullPointerException: No IModelProvider exists for project P/Test5 of version: Dynamic Web Module 2.5
at org.eclipse.jst.j2ee.model.ModelProviderManager.getModelProvider(ModelProviderManager.java:99)
at org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate.createWeb25DeploymentDescriptor(WebFacetInstallDelegate.java:283)
at org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate.execute(WebFacetInstallDelegate.java:116)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.callDelegate(FacetedProject.java:1467)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modifyInternal(FacetedProject.java:438)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChangesInternal(FacetedProject.java:1171)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.access$2(FacetedProject.java:1107)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject$5.run(FacetedProject.java:1089)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChanges(FacetedProject.java:1099)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.commitChanges(FacetedProjectWorkingCopy.java:1958)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard.performFinish(ModifyFacetedProjectWizard.java:400)
at org.eclipse.wst.web.ui.internal.wizards.NewProjectDataModelFacetWizard.performFinish(NewProjectDataModelFacetWizard.java:279)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard$3.run(ModifyFacetedProjectWizard.java:331)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard$4.run(ModifyFacetedProjectWizard.java:345)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
!ENTRY org.eclipse.wst.common.project.facet.core 4 0 2009-09-23 15:08:42.676
!MESSAGE Failed while installing Dynamic Web Module 2.5.
!STACK 0
java.lang.NullPointerException
at org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate.createWeb25DeploymentDescriptor(WebFacetInstallDelegate.java:310)
at org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate.execute(WebFacetInstallDelegate.java:116)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.callDelegate(FacetedProject.java:1467)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modifyInternal(FacetedProject.java:438)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChangesInternal(FacetedProject.java:1171)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.access$2(FacetedProject.java:1107)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject$5.run(FacetedProject.java:1089)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChanges(FacetedProject.java:1099)
at org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.commitChanges(FacetedProjectWorkingCopy.java:1958)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard.performFinish(ModifyFacetedProjectWizard.java:400)
at org.eclipse.wst.web.ui.internal.wizards.NewProjectDataModelFacetWizard.performFinish(NewProjectDataModelFacetWizard.java:279)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard$3.run(ModifyFacetedProjectWizard.java:331)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.wst.common.project.facet.ui.ModifyFacetedProjectWizard$4.run(ModifyFacetedProjectWizard.java:345)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
A bit of googling finds other people in the same boat, I am downloading more packages from eclipse in the hope that this will solve it for me…
Another thing you could try would be to create a Vaadin project with dynamic web module version 2.4 if it helps:
First select Vaadin project as the configuration and then click on Modify next to the configuration combo box in the new project wizard. Then select 2.4 as the dynamic web module version.
I ran in to this very problem today with an Eclipse C++ installation to which I had added WTP and other plugins to get Vaadin to work. Installing more plugins indeed did the trick, in particular installing the “JST Web UI” plugin resolved the problem for me.