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problem with windowbuilder [message #1858996] Thu, 04 May 2023 17:04 Go to next message
Rity20 Rity67 is currently offline Rity20 Rity67Friend
Messages: 1
Registered: May 2023
Junior Member
Hello i need help with this error.

Unknown GUI toolkit

The parser parsed the compilation unit, but can't identify any GUI toolkit, so WindowBuilder can't display any GUI to edit. This can be caused by one of the following reasons:

This class is not an editable UI class and contains no UI components.
WindowBuilder does not recognize the GUI toolkit or library used in this class.
WindowBuilder does not understand this GUI type/pattern in a supported GUI toolkit.
Problems exist with the classpath. For example, the compilation unit uses SWT classes, but the SWT/JFace libraries are not included into the classpath.
Hide stack trace.

Dettagli
Stack trace:
org.eclipse.wb.internal.core.utils.exception.DesignerException: 103 (Unknown GUI toolkit). nnnn
at org.eclipse.wb.internal.core.parser.JavaInfoParser.prepareParseContext(JavaInfoParser.java:1204)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:244)
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:160)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:150)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:553)
at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:468)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:183)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:5250)
at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:464)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:434)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:352)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:470)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:484)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:432)
at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:389)
at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:275)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:252)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:127)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4646)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1524)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1547)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1325)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3248)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1882)
at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:332)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4646)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1524)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1547)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1325)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4413)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3989)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:643)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:550)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
Full context stack trace:

org.eclipse.wb.internal.core.utils.exception.DesignerException: 103 (Unknown GUI toolkit). nnnn
at org.eclipse.wb.internal.core.parser.JavaInfoParser.prepareParseContext(JavaInfoParser.java:1204)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:244)
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:160)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:150)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:553)
at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:468)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:183)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:5250)
at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:464)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:434)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:352)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:470)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:484)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:432)
at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:389)
at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:275)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:252)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:127)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4646)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1524)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1547)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1325)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3248)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1882)
at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:332)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4646)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1524)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1547)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1325)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4413)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3989)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:643)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:550)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)

First i installed the WindowsBuilder.
Then i create JFrame file, and it fails at the tab Design.

These are the errors:

Description Resource Path Location Type
EmptyBorder cannot be resolved to a type acme.java /ACME/src line 35 Java Problem
EmptyBorder cannot be resolved to a type nnnn.java /ACME/src line 35 Java Problem
EventQueue cannot be resolved acme.java /ACME/src line 16 Java Problem
EventQueue cannot be resolved mmm.java /ACME/src line 13 Java Problem
EventQueue cannot be resolved nnnn.java /ACME/src line 16 Java Problem
JFrame cannot be resolved to a type acme.java /ACME/src line 8 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 7 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 17 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 36 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 36 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 37 Java Problem
JFrame cannot be resolved to a type mmm.java /ACME/src line 38 Java Problem
JFrame cannot be resolved to a type nnnn.java /ACME/src line 8 Java Problem
JFrame cannot be resolved to a variable acme.java /ACME/src line 32 Java Problem
JFrame cannot be resolved to a variable mmm.java /ACME/src line 38 Java Problem
JFrame cannot be resolved to a variable nnnn.java /ACME/src line 32 Java Problem
JPanel cannot be resolved to a type acme.java /ACME/src line 10 Java Problem
JPanel cannot be resolved to a type acme.java /ACME/src line 34 Java Problem
JPanel cannot be resolved to a type acme.java /ACME/src line 34 Java Problem
JPanel cannot be resolved to a type acme.java /ACME/src line 35 Java Problem
JPanel cannot be resolved to a type acme.java /ACME/src line 37 Java Problem
JPanel cannot be resolved to a type nnnn.java /ACME/src line 10 Java Problem
JPanel cannot be resolved to a type nnnn.java /ACME/src line 34 Java Problem
JPanel cannot be resolved to a type nnnn.java /ACME/src line 34 Java Problem
JPanel cannot be resolved to a type nnnn.java /ACME/src line 35 Java Problem
JPanel cannot be resolved to a type nnnn.java /ACME/src line 37 Java Problem
Must declare a named package because this compilation unit is associated to the named module 'ACME' acme.java /ACME/src line 1 Java Problem
Must declare a named package because this compilation unit is associated to the named module 'ACME' mmm.java /ACME/src line 1 Java Problem
Must declare a named package because this compilation unit is associated to the named module 'ACME' nnnn.java /ACME/src line 1 Java Problem
The method setBounds(int, int, int, int) is undefined for the type acme acme.java /ACME/src line 33 Java Problem
The method setBounds(int, int, int, int) is undefined for the type nnnn nnnn.java /ACME/src line 33 Java Problem
The method setVisible(boolean) is undefined for the type acme acme.java /ACME/src line 20 Java Problem
The method setVisible(boolean) is undefined for the type nnnn nnnn.java /ACME/src line 20 Java Problem
The package java.awt is not accessible acme.java /ACME/src line 1 Java Problem
The package java.awt is not accessible acme.java /ACME/src line 2 Java Problem
The package java.awt is not accessible mmm.java /ACME/src line 1 Java Problem
The package java.awt is not accessible nnnn.java /ACME/src line 1 Java Problem
The package java.awt is not accessible nnnn.java /ACME/src line 2 Java Problem
The type javax.swing.border.EmptyBorder is not accessible acme.java /ACME/src line 6 Java Problem
The type javax.swing.border.EmptyBorder is not accessible nnnn.java /ACME/src line 6 Java Problem
The type javax.swing.JFrame is not accessible acme.java /ACME/src line 4 Java Problem
The type javax.swing.JFrame is not accessible mmm.java /ACME/src line 3 Java Problem
The type javax.swing.JFrame is not accessible nnnn.java /ACME/src line 4 Java Problem
The type javax.swing.JPanel is not accessible acme.java /ACME/src line 5 Java Problem
The type javax.swing.JPanel is not accessible nnnn.java /ACME/src line 5 Java Problem

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Re: problem with windowbuilder [message #1859001 is a reply to message #1858996] Fri, 05 May 2023 06:07 Go to previous message
Ed Merks is currently offline Ed MerksFriend
Messages: 33264
Registered: July 2009
Senior Member
It's probably better to ask about WindowBuilder-related things here:

https://github.com/eclipse/windowbuilder/discussions

Ed Merks
Professional Support: https://www.macromodeling.com/

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