با سلام خسته نباشید
یه سوال داشتم من در NetBeans IDE دکمه paste کار نمیکنه مثلا بخوام یه فایلی رو وارد پروژه کنم اصلا هیچ کاری انجام نمیده
و وقتی میخوام یه button که ساختم رو وارد پنل کنم بازم هیچی عملیاتی انجام نمیده روی drag کردن هم خطا میده

یه پیام هم به این شکل میاد
java.lang.IllegalArgumentException: failed to parse:application/x-java-openide-dataobjectdnd;class=org.openide.loaders.DataObject ;mask=۴
at java.datatransfer/java.awt.datatransfer.DataFlavor.<init>(DataFlavor .java:476)
at org.openide.loaders.LoaderTransfer.createDndFlavor (LoaderTransfer.java:213)
at org.openide.loaders.LoaderTransfer.transferable(Lo aderTransfer.java:92)
at org.openide.loaders.DataNode.clipboardCut(DataNode .java:717)
at org.openide.nodes.FilterNode.clipboardCut(FilterNo de.java:625)
at org.openide.explorer.view.DragDropUtilities.getNod eTransferable(DragDropUtilities.java:112)
at org.openide.explorer.view.ExplorerDragSupport.drag GestureRecognized(ExplorerDragSupport.java:107)
at org.openide.explorer.view.TreeViewDragSupport.drag GestureRecognized(TreeViewDragSupport.java:69)
at java.desktop/java.awt.dnd.DragGestureRecognizer.fireDragGesture Recognized(DragGestureRecognizer.java:363)
at java.desktop/sun.awt.windows.WMouseDragGestureRecognizer.mouseD ragged(WMouseDragGestureRecognizer.java:223)
at java.desktop/java.awt.AWTEventMulticaster.mouseDragged(AWTEvent Multicaster.java:328)
at java.desktop/java.awt.AWTEventMulticaster.mouseDragged(AWTEvent Multicaster.java:327)
at java.desktop/java.awt.AWTEventMulticaster.mouseDragged(AWTEvent Multicaster.java:327)
at java.desktop/java.awt.Component.processMouseMotionEvent(Compone nt.java:6668)
at java.desktop/javax.swing.JComponent.processMouseMotionEvent(JCo mponent.java:3416)
at java.desktop/java.awt.Component.processEvent(Component.java:638 9)
at java.desktop/java.awt.Container.processEvent(Container.java:226 6)
at java.desktop/java.awt.Component.dispatchEventImpl(Component.jav a:4995)
at java.desktop/java.awt.Container.dispatchEventImpl(Container.jav a:2324)
at java.desktop/java.awt.Component.dispatchEvent(Component.java:48 27)
at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent( Container.java:4948)
at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(C ontainer.java:4592)
at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Conta iner.java:4516)
at java.desktop/java.awt.Container.dispatchEventImpl(Container.jav a:2310)
at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780 )
at java.desktop/java.awt.Component.dispatchEvent(Component.java:48 27)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.j ava:775)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
at java.base/java.security.AccessController.doPrivileged(Access Controller.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 86)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 97)
at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
at java.base/java.security.AccessController.doPrivileged(Access Controller.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java: 744)
at org.netbeans.core.TimableEventQueue.dispatchEvent( TimableEventQueue.java:136)
[catch] at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThre ad.java:90)