<extension point="org.eclipse.ui.menus"> <menuContribution locationURI="menu:org.eclipse.ui.main.menu?after=additions"> <menu id="mymenu.help" label="%Menu.Help"> <menu label="%Menu.Help.CheatSheet"> <command commandId="org.eclipse.ui.cheatsheets.openCheatSheet" label="%cheatsheet.firststeps"> <parameter name="cheatSheetId" value="cheatsheet.firststeps"> </parameter> </command> </menu> </menu> </menuContribution> </extension>
java.lang.NoClassDefFoundError: org/eclipse/help/ui/internal/views/HelpTray at org.eclipse.ui.internal.cheatsheets.handlers.OpenCheatSheetHandler.execute(OpenCheatSheetHandler.java:37)