title: Java Model Exception: Java Model Status [gen [in MyApp] does not exist] after Eclipse Android project Clean
body: <p>After performing a Menubar> Project> Clean...
  I get the following error in the errorlog:</p>
  
  <blockquote>
    <p>Java Model Exception: Java Model Status [gen [in MyApp] does not exist]
        at org.eclipse.jdt.internal.core.JavaElement.newJavaModelException(JavaElement.java:502)
        at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:246)
        at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:515)
        at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:252)
        at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:238)
        at org.eclipse.jdt.internal.core.PackageFragmentRoot.getKind(PackageFragmentRoot.java:477)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.processDelta(PackageExplorerContentProvider.java:645)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.handleAffectedChildren(PackageExplorerContentProvider.java:791)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.processDelta(PackageExplorerContentProvider.java:734)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.handleAffectedChildren(PackageExplorerContentProvider.java:791)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.processDelta(PackageExplorerContentProvider.java:734)
        at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.elementChanged(PackageExplorerContentProvider.java:124)
        at org.eclipse.jdt.internal.core.DeltaProcessor$3.run(DeltaProcessor.java:1557)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
        at org.eclipse.jdt.internal.core.DeltaProcessor.notifyListeners(DeltaProcessor.java:1547)
        at org.eclipse.jdt.internal.core.DeltaProcessor.firePostChangeDelta(DeltaProcessor.java:1381)
        at org.eclipse.jdt.internal.core.DeltaProcessor.fire(DeltaProcessor.java:1357)
        at org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged(DeltaProcessor.java:1958)
        at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:470)
        at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:291)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
        at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
        at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
        at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:313)
        at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1022)
        at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:45)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)</p>
  </blockquote>
  
  <p>Any ideas if this is a problem and what is causing it?
  It occurs whether I Clean just my project or all projects </p>
  
  <ul>
  <li>Frink</li>
  </ul>
  
  <p>My Development Environment is:
  Eclipse 3.5.2 with ADT 0.9.7 (2.1) and Java SDK 6 Update 21
  32bit Windows XP VirtualBox VM on 64bit Windows 7
  AMD Phenom II X4 955 Processor @3.20GHz with 4GB RAM</p>