초보 프로그래머인데요
이게 무슨 에러 인가요? 고수님들의 조언 부탁드립니다.


Internal Error


Java Model Exception: Java Model Status [gen [in Accounts] 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)