SolarEclipse Development Tools

I just downloaded the latest 0.4.1 version but when I try
to save a JSP file in the JSP Editor, I just get an error:

------------------------------
!ENTRY org.eclipse.ui 2 0 2005-05-10 13:33:55.15
!MESSAGE Save Failed
!STACK 0
java.lang.NoSuchMethodError:
org.eclipse.ui.texteditor.AbstractTextEditor.createSaveO
peration(Z)
Lorg/eclipse/ui/actions/WorkspaceModifyOperation;
at
net.sf.solareclipse.editor.I18NTextEditor.doSave
(I18NTextEditor.java:65)
at
org.eclipse.ui.internal.SaveableHelper$1.run
(SaveableHelper.java:95)
at
org.eclipse.ui.internal.SaveableHelper$2.run
(SaveableHelper.java:116)
at
org.eclipse.jface.operation.ModalContext.runInCurrentThr
ead(ModalContext.java:346)
at
org.eclipse.jface.operation.ModalContext.run
(ModalContext.java:291)
at
org.eclipse.jface.window.ApplicationWindow$1.run
(ApplicationWindow.java:624)
at
org.eclipse.swt.custom.BusyIndicator.showWhile
(BusyIndicator.java:69)
at
org.eclipse.jface.window.ApplicationWindow.run
(ApplicationWindow.java:621)
at
org.eclipse.ui.internal.WorkbenchWindow.run
(WorkbenchWindow.java:1975)
at
org.eclipse.ui.internal.SaveableHelper.runProgressMonito
rOperation(SaveableHelper.java:122)
at
org.eclipse.ui.internal.SaveableHelper.savePart
(SaveableHelper.java:100)
at
org.eclipse.ui.internal.EditorManager.savePart
(EditorManager.java:1414)
at
org.eclipse.ui.internal.WorkbenchPage.savePart
(WorkbenchPage.java:2580)
at
org.eclipse.ui.internal.WorkbenchPage.saveEditor
(WorkbenchPage.java:2593)
at org.eclipse.ui.internal.SaveAction.run
(SaveAction.java:69)
at
org.eclipse.jface.action.Action.runWithEvent
(Action.java:996)
at
org.eclipse.jface.commands.ActionHandler.execute
(ActionHandler.java:117)
at
org.eclipse.core.commands.Command.execute
(Command.java:331)
at
org.eclipse.core.commands.ParameterizedCommand.ex
ecute(ParameterizedCommand.java:396)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.execute
Command(WorkbenchKeyboard.java:452)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.press
(WorkbenchKeyboard.java:741)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.process
KeyEvent(WorkbenchKeyboard.java:784)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKe
ySequenceBindings(WorkbenchKeyboard.java:543)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.access
$3(WorkbenchKeyboard.java:486)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDo
wnFilter.handleEvent(WorkbenchKeyboard.java:110)
at
org.eclipse.swt.widgets.EventTable.sendEvent
(EventTable.java:82)
at org.eclipse.swt.widgets.Display.filterEvent
(Display.java:777)
at org.eclipse.swt.widgets.Widget.sendEvent
(Widget.java:841)
at org.eclipse.swt.widgets.Widget.sendEvent
(Widget.java:866)
at org.eclipse.swt.widgets.Widget.sendEvent
(Widget.java:851)
at
org.eclipse.swt.widgets.Widget.sendKeyEvent
(Widget.java:879)
at
org.eclipse.swt.widgets.Widget.sendKeyEvent
(Widget.java:875)
at org.eclipse.swt.widgets.Widget.wmChar
(Widget.java:1182)
at org.eclipse.swt.widgets.Control.WM_CHAR
(Control.java:3126)
at
org.eclipse.swt.widgets.Control.windowProc
(Control.java:3029)
at
org.eclipse.swt.widgets.Display.windowProc
(Display.java:3466)
at
org.eclipse.swt.internal.win32.OS.DispatchMessageW
(Native Method)
at
org.eclipse.swt.internal.win32.OS.DispatchMessage
(OS.java:1625)
at
org.eclipse.swt.widgets.Display.readAndDispatch
(Display.java:2525)
at
org.eclipse.ui.internal.Workbench.runEventLoop
(Workbench.java:1570)
at org.eclipse.ui.internal.Workbench.runUI
(Workbench.java:1534)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbe
nch(Workbench.java:306)
at
org.eclipse.ui.PlatformUI.createAndRunWorkbench
(PlatformUI.java:143)
at
org.eclipse.ui.internal.ide.IDEApplication.run
(IDEApplication.java:103)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run
(PlatformActivator.java:228)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:344)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:156)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke
(Method.java:585)
at
org.eclipse.core.launcher.Main.invokeFramework
(Main.java:315)
at org.eclipse.core.launcher.Main.basicRun
(Main.java:268)
at org.eclipse.core.launcher.Main.run
(Main.java:942)
at org.eclipse.core.launcher.Main.main
(Main.java:926)
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