java.io.IOException: Top component hgversioning could not be loaded, either owni ng module was disabled, has incompatible version or top components settings file  format is broken.
        at org.netbeans.core.windows.persistence.PersistenceManager.getTopCompon entPersistentForID(PersistenceManager.java:496)
        at org.netbeans.core.windows.persistence.PersistenceManager.getTopCompon entForID(PersistenceManager.java:587)
        at org.netbeans.core.windows.PersistenceHandler.getTopComponentForID(Per sistenceHandler.java:392)
        at org.netbeans.core.windows.WindowManagerImpl.getTopComponentForID(Wind owManagerImpl.java:757)
        at org.netbeans.core.windows.WindowManagerImpl.findTopComponent(WindowMa nagerImpl.java:215)
        at org.netbeans.modules.mercurial.ui.status.HgVersioningTopComponent.fin dInstance(HgVersioningTopComponent.java:152)
        at org.netbeans.modules.mercurial.ui.status.StatusAction.actionPerformed (StatusAction.java:66)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:18 49)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.jav a:2169)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel .java:420)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258 )
        at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1 000)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMen uItemUI.java:1041)
        at java.awt.Component.processMouseEvent(Component.java:5501)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5266)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3968)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3803)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212 )
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
        at java.awt.Container.dispatchEventImpl(Container.java:2010)
        at java.awt.Window.dispatchEventImpl(Window.java:1778)
        at java.awt.Component.dispatchEvent(Component.java:3803)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh read.java:242)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre ad.java:163)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)