MPLAB X 4.20 Error

java.lang.NullPointerException
 at com.microchip.mplab.nbide.embedded.makeproject.configurations.ui.FileInclusionPanel.initIncludedAndExcludedFilesLists(FileInclusionPanel.java:517)
 at com.microchip.mplab.nbide.embedded.makeproject.configurations.ui.FileInclusionPanel.<init>(FileInclusionPanel.java:99)
 at com.microchip.mplab.nbide.embedded.makeproject.ui.customizer.MakeCustomizer$FileInclusionNode.getPanel(MakeCustomizer.java:1835)
 at com.microchip.mplab.nbide.embedded.makeproject.ui.customizer.MakeCustomizer$PropertyNode.getPanel(MakeCustomizer.java:2033)
 at com.microchip.mplab.nbide.embedded.makeproject.ui.customizer.MakeCustomizer$CategoryView$ManagerChangeListener.propertyChange(MakeCustomizer.java:781)
 at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
 at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
 at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
 at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:886)
 at org.openide.util.Mutex.doEvent(Mutex.java:1356)
 at org.openide.util.Mutex.readAccess(Mutex.java:355)
 at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:883)
 at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:292)
 at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:303)
 at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:391)
 at org.openide.util.Mutex.readAccess(Mutex.java:372)
 at org.openide.util.Mutex$1R.run(Mutex.java:1322)
 at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1339)
 at org.openide.util.Mutex.readAccess(Mutex.java:361)
 at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:418)
 at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:149)
 at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:849)
 at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1491)
 at org.openide.util.Mutex$1Exec.run(Mutex.java:1259)
 at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1921)
 at org.openide.util.Mutex.postRequest(Mutex.java:1265)
 at org.openide.util.Mutex.postRequest(Mutex.java:1228)
 at org.openide.util.Mutex.postReadRequest(Mutex.java:575)
 at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1460)
 at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:635)
 at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1093)
 at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:294)
 at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:188)
 at javax.swing.JTree.setSelectionPath(JTree.java:1634)
 at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2393)
 at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3609)
 at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3586)
 at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3545)
 at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
 at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
 at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
 at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
 at java.awt.Component.processMouseEvent(Component.java:6530)
 at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
 at java.awt.Component.processEvent(Component.java:6298)
 at java.awt.Container.processEvent(Container.java:2236)
 at java.awt.Component.dispatchEventImpl(Component.java:4889)
 at java.awt.Container.dispatchEventImpl(Container.java:2294)
 at java.awt.Component.dispatchEvent(Component.java:4711)
 at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
 at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4522)
 at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
 at java.awt.Container.dispatchEventImpl(Container.java:2280)
 at java.awt.Window.dispatchEventImpl(Window.java:2746)
 at java.awt.Component.dispatchEvent(Component.java:4711)
 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
 at java.awt.EventQueue.access$500(EventQueue.java:97)
 at java.awt.EventQueue$3.run(EventQueue.java:709)
 at java.awt.EventQueue$3.run(EventQueue.java:703)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
 at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
 at java.awt.EventQueue$4.run(EventQueue.java:731)
 at java.awt.EventQueue$4.run(EventQueue.java:729)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
 at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
[catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
 at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:184)
 at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:229)
 at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:227)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
 at java.awt.Dialog.show(Dialog.java:1084)
 at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1065)
 at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1115)
 at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1087)
 at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:128)
 at org.openide.util.Mutex$1AWTWorker.run(Mutex.java:1394)
 at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
 at java.awt.EventQueue.access$500(EventQueue.java:97)
 at java.awt.EventQueue$3.run(EventQueue.java:709)
 at java.awt.EventQueue$3.run(EventQueue.java:703)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
 at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)