org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted. 
        at com.sun.org.apache.xerces.internal.dom.ParentNode.internalInsertBefore(ParentNode.java:356)
        at com.sun.org.apache.xerces.internal.dom.ParentNode.insertBefore(ParentNode.java:284)
        at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.insertBefore(CoreDocumentImpl.java:389)
        at com.sun.org.apache.xerces.internal.dom.NodeImpl.appendChild(NodeImpl.java:235)
        at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.cloneNode(CoreDocumentImpl.java:347)
        at com.sun.org.apache.xerces.internal.dom.DocumentImpl.cloneNode(DocumentImpl.java:155)
        at org.apache.tools.ant.module.xml.AntProjectSupport.getDocument(AntProjectSupport.java:161)
        at org.apache.tools.ant.module.xml.AntProjectSupport.getProjectElement(AntProjectSupport.java:297)
        at org.apache.tools.ant.module.run.TargetExecutor.getProcessDisplayName(TargetExecutor.java:137)
        at org.apache.tools.ant.module.run.TargetExecutor.execute(TargetExecutor.java:300)
        at org.apache.tools.ant.module.api.AntTargetExecutor.execute(AntTargetExecutor.java:103)
        at org.apache.tools.ant.module.api.support.ActionUtils.runTarget(ActionUtils.java:94)
        at org.netbeans.modules.ant.freeform.Actions$TargetRunner.runTarget(Actions.java:548)
        at org.netbeans.modules.ant.freeform.Actions.runConfiguredAction(Actions.java:444)
        at org.netbeans.modules.ant.freeform.Actions.invokeAction(Actions.java:243)
        at org.netbeans.modules.ant.freeform.LookupMergerImpl$ActionProviderImpl.invokeAction(LookupMergerImpl.java:130)
        at org.netbeans.modules.project.ui.actions.FileCommandAction.actionPerformed(FileCommandAction.java:96)
        at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:166)
        at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:1052)
        at javax.swing.JComponent.processKeyBindings(JComponent.java:2895)
        at javax.swing.JComponent.processKeyEvent(JComponent.java:2812)
        at java.awt.Component.processEvent(Component.java:5993)
        at java.awt.Container.processEvent(Container.java:2041)
        at java.awt.Component.dispatchEventImpl(Component.java:4583)
        at java.awt.Container.dispatchEventImpl(Container.java:2099)
        at java.awt.Component.dispatchEvent(Component.java:4413)
        at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
        at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:704)
        at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:969)
        at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:841)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:668)
        at java.awt.Component.dispatchEventImpl(Component.java:4455)
        at java.awt.Container.dispatchEventImpl(Container.java:2099)
        at java.awt.Window.dispatchEventImpl(Window.java:2475)
        at java.awt.Component.dispatchEvent(Component.java:4413)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)