org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create or change an object in a way which is incorrect with regard to namespaces. at com.sun.org.apache.xerces.internal.dom.AttrNSImpl.setName(AttrNSImpl.java:146) at com.sun.org.apache.xerces.internal.dom.AttrNSImpl.(AttrNSImpl.java:115) at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.createAttributeNS(CoreDocumentImpl.java:2109) at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.importNode(CoreDocumentImpl.java:1622) at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.importNode(CoreDocumentImpl.java:1586) at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.importNode(CoreDocumentImpl.java:1528) at org.netbeans.spi.project.support.ant.AntProjectHelper.cloneSafely(AntProjectHelper.java:824) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$1400(AntProjectHelper.java:65) at org.netbeans.spi.project.support.ant.AntProjectHelper$12.run(AntProjectHelper.java:802) at org.openide.util.Mutex.readAccess(Mutex.java:195) at org.netbeans.spi.project.support.ant.AntProjectHelper.getConfigurationFragment(AntProjectHelper.java:796) at org.netbeans.spi.project.support.ant.AntProjectHelper$11.run(AntProjectHelper.java:712) at org.openide.util.Mutex.readAccess(Mutex.java:195) at org.netbeans.spi.project.support.ant.AntProjectHelper.getPrimaryConfigurationData(AntProjectHelper.java:709) at org.netbeans.modules.apisupport.project.NbModuleProject.getCodeNameBase(NbModuleProject.java:568) at org.netbeans.modules.apisupport.project.NbModuleProject.(NbModuleProject.java:113) at org.netbeans.modules.apisupport.project.NbModuleProjectType.createProject(NbModuleProjectType.java:41) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.loadProject(AntBasedProjectFactorySingleton.java:165) at org.netbeans.api.project.ProjectManager.createProject(ProjectManager.java:319) at org.netbeans.api.project.ProjectManager.access$700(ProjectManager.java:44) at org.netbeans.api.project.ProjectManager$2.run(ProjectManager.java:233) at org.openide.util.Mutex.readAccess(Mutex.java:234) at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:180) at org.netbeans.modules.project.ui.OpenProjectList.fileToProject(OpenProjectList.java:348) at org.netbeans.modules.project.ui.ProjectChooserAccessory.getProject(ProjectChooserAccessory.java:310) at org.netbeans.modules.project.ui.ProjectChooserAccessory.propertyChange(ProjectChooserAccessory.java:207) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:338) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:275) at java.awt.Component.firePropertyChange(Component.java:7637) at javax.swing.JFileChooser.setSelectedFile(JFileChooser.java:476) at javax.swing.JFileChooser.setSelectedFiles(JFileChooser.java:505) at javax.swing.plaf.basic.BasicFileChooserUI$Handler.valueChanged(BasicFileChooserUI.java:495) at javax.swing.JList.fireSelectionValueChanged(JList.java:1666) at javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1680) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:157) at javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:619) at javax.swing.JList.setValueIsAdjusting(JList.java:2020) at javax.swing.plaf.basic.BasicListUI$Handler.mouseReleased(BasicListUI.java:2759) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231) at java.awt.Component.processMouseEvent(Component.java:5921) at javax.swing.JComponent.processMouseEvent(JComponent.java:3316) at java.awt.Component.processEvent(Component.java:5686) at java.awt.Container.processEvent(Container.java:1960) at java.awt.Component.dispatchEventImpl(Component.java:4360) at java.awt.Container.dispatchEventImpl(Container.java:2018) at java.awt.Component.dispatchEvent(Component.java:4194) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4222) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3886) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3816) at java.awt.Container.dispatchEventImpl(Container.java:2004) at java.awt.Window.dispatchEventImpl(Window.java:2059) at java.awt.Component.dispatchEvent(Component.java:4194) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:592) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:270) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:198) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:175) at java.awt.Dialog$1.run(Dialog.java:1029) at java.awt.Dialog.show(Dialog.java:1067) at javax.swing.JFileChooser.showDialog(JFileChooser.java:718) at javax.swing.JFileChooser.showOpenDialog(JFileChooser.java:621) at org.netbeans.modules.project.ui.actions.OpenProject.actionPerformed(OpenProject.java:57) at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:800) at javax.swing.JComponent.processKeyBindings(JComponent.java:2937) at javax.swing.JComponent.processKeyEvent(JComponent.java:2854) at java.awt.Component.processEvent(Component.java:5698) at java.awt.Container.processEvent(Container.java:1960) at java.awt.Component.dispatchEventImpl(Component.java:4360) at java.awt.Container.dispatchEventImpl(Container.java:2018) at java.awt.Component.dispatchEvent(Component.java:4194) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1826) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:690) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:938) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:816) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:654) at java.awt.Component.dispatchEventImpl(Component.java:4232) at java.awt.Container.dispatchEventImpl(Container.java:2018) at java.awt.Window.dispatchEventImpl(Window.java:2059) at java.awt.Component.dispatchEvent(Component.java:4194) at java.awt.EventQueue.dispatchEvent(EventQueue.java:592) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:270) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:198) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:171) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:166) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:158) at java.awt.EventDispatchThread.run(EventDispatchThread.java:119)