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org.eclipse.wb.internal.core.utils.exception.DesignerException: 103 (Unknown GUI toolkit). org.traccar.web.client.view.LoginDialog	at org.eclipse.wb.internal.core.parser.JavaInfoParser.prepareParseContext(JavaInfoParser.java:1195)	at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:242)	at org.eclipse.wb.internal.core.parser.JavaInfoParser.access$9(JavaInfoParser.java:238)	at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:153)	at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:1)	at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.runDesignTime(ExecutionUtils.java:159)	at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:151)	at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:534)	at org.eclipse.wb.internal.core.editor.DesignPage.access$9(DesignPage.java:522)	at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:449)	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:187)	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:156)	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4734)	at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:446)	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:466)	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:374)	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:527)	at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:465)	at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:415)	at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:381)	at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90)	at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:263)	at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:241)	at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:125)	at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63)	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1085)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1070)	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:782)	at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3110)	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1794)	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:283)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)