Vaadin 7.6.0 and Touchkit 4.1.0.alpha1 compilation error

Hi,
I have just updated my project from 7.5.5 to 7.6.0 and as well the touchkit version to 4.1.0.alpha1, but the widget compilation does not work and throws the following compilation error:

   Computing all possible rebind results for 'com.vaadin.client.metadata.ConnectorBundleLoader'
      Rebinding com.vaadin.client.metadata.ConnectorBundleLoader
         Invoking generator com.vaadin.addon.touchkit.gwt.TouchKitBundleLoaderFactory
            Populating eager bundle
               Visiting FloatingIndexConnector with ConnectorInitVisitor
                  FloatingIndexConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.FloatingIndexSharedState as a bean
               Will serialize class com.vaadin.shared.communication.URLReference using URLReference_Serializer
               Visiting GeolocatorConnector with ConnectorInitVisitor
                  GeolocatorConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.communication.SharedState as a bean
               Visiting Html5InputSettingsConnector with ConnectorInitVisitor
                  Html5InputSettingsConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.Html5InputSettingsState as a bean
               Visiting LocalStorageConnector with ConnectorInitVisitor
                  LocalStorageConnector will be in the eager bundle
               Visiting OfflineModeConnector with ConnectorInitVisitor
                  OfflineModeConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.OfflineModeState as a bean
               Visiting DatePickerConnector with ConnectorInitVisitor
                  DatePickerConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.DatePickerState as a bean
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.DatePickerState.Resolution as an enum
               Visiting EmailFieldConnector with ConnectorInitVisitor
                  EmailFieldConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.textfield.AbstractTextFieldState as a bean
               Visiting HorizontalButtonGroupConnector with ConnectorInitVisitor
                  HorizontalButtonGroupConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.AbstractComponentState as a bean
               Visiting NavigationBarConnector with ConnectorInitVisitor
                  NavigationBarConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.navigation.NavigationBarState as a bean
               Visiting NavigationButtonConnector with ConnectorInitVisitor
                  NavigationButtonConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.navigation.NavigationButtonSharedState as a bean
               Visiting NavigationViewConnector with ConnectorInitVisitor
                  NavigationViewConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.navigation.NavigationViewState as a bean
               Visiting NumberFieldConnector with ConnectorInitVisitor
                  NumberFieldConnector will be in the eager bundle
               Visiting PopoverConnector with ConnectorInitVisitor
                  PopoverConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.popover.PopoverState as a bean
               Will serialize com.vaadin.shared.Connector[] as an array
               Will serialize class com.vaadin.shared.ui.window.WindowMode as an enum
               Will serialize class com.vaadin.shared.ui.window.WindowRole as an enum
               Visiting SwipeViewConnector with ConnectorInitVisitor
                  SwipeViewConnector will be in the eager bundle
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.SwipeViewSharedState as a bean
               Visiting SwitchConnector with ConnectorInitVisitor
                  SwitchConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.checkbox.CheckBoxState as a bean
               Visiting TabBarConnector with ConnectorInitVisitor
                  TabBarConnector will be in the eager bundle
               Visiting UrlFieldConnector with ConnectorInitVisitor
                  UrlFieldConnector will be in the eager bundle
               Visiting VerticalComponentGroupConnector with ConnectorInitVisitor
                  VerticalComponentGroupConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.AbstractLayoutState as a bean
               Visiting RpcDataSourceConnector with ConnectorInitVisitor
                  RpcDataSourceConnector will be in the eager bundle
               Visiting JavaScriptExtension with ConnectorInitVisitor
                  JavaScriptExtension will be in the eager bundle
               Will serialize class com.vaadin.shared.JavaScriptExtensionState as a bean
               Visiting BrowserWindowOpenerConnector with ConnectorInitVisitor
                  BrowserWindowOpenerConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.BrowserWindowOpenerState as a bean
               Visiting FileDownloaderConnector with ConnectorInitVisitor
                  FileDownloaderConnector will be in the eager bundle
               Visiting ResponsiveConnector with ConnectorInitVisitor
                  ResponsiveConnector will be in the eager bundle
               Visiting JavaScriptComponentConnector with ConnectorInitVisitor
                  JavaScriptComponentConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.JavaScriptComponentState as a bean
               Visiting AudioConnector with ConnectorInitVisitor
                  AudioConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.AbstractMediaState as a bean
               Visiting BrowserFrameConnector with ConnectorInitVisitor
                  BrowserFrameConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.browserframe.BrowserFrameState as a bean
               Visiting ButtonConnector with ConnectorInitVisitor
                  ButtonConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.button.ButtonState as a bean
               Visiting CheckBoxConnector with ConnectorInitVisitor
                  CheckBoxConnector will be in the eager bundle
               Visiting CssLayoutConnector with ConnectorInitVisitor
                  CssLayoutConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.csslayout.CssLayoutState as a bean
               Visiting CustomComponentConnector with ConnectorInitVisitor
                  CustomComponentConnector will be in the eager bundle
               Visiting CustomFieldConnector with ConnectorInitVisitor
                  CustomFieldConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.AbstractFieldState as a bean
               Visiting DateFieldConnector with ConnectorInitVisitor
                  DateFieldConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.datefield.PopupDateFieldState as a bean
               Will serialize class java.util.Date using Date_Serializer
               Visiting DragAndDropWrapperConnector with ConnectorInitVisitor
                  DragAndDropWrapperConnector will be in the eager bundle
               Visiting EmbeddedConnector with ConnectorInitVisitor
                  EmbeddedConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.embedded.EmbeddedState as a bean
               Visiting FlashConnector with ConnectorInitVisitor
                  FlashConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.flash.FlashState as a bean
               Visiting FormConnector with ConnectorInitVisitor
                  FormConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.form.FormState as a bean
               Visiting FormLayoutConnector with ConnectorInitVisitor
                  FormLayoutConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutState as a bean
               Will serialize class java.util.HashMap<com.vaadin.shared.Connector, com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutState.ChildComponentData> as a bean
               Will serialize class com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutState.ChildComponentData as a bean
               Visiting GridConnector with ConnectorInitVisitor
                  GridConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.grid.GridState as a bean
               Will serialize class com.vaadin.shared.ui.grid.HeightMode as an enum
               Will serialize class com.vaadin.shared.ui.grid.GridState.SharedSelectionMode as an enum
               Will serialize java.lang.String[] as an array
               Will serialize com.vaadin.shared.data.sort.SortDirection[] as an array
               Will serialize class com.vaadin.shared.data.sort.SortDirection as an enum
               Will serialize class com.vaadin.shared.ui.grid.GridColumnState as a bean
               Will serialize class com.vaadin.shared.ui.grid.GridStaticSectionState as a bean
               Will serialize class com.vaadin.shared.ui.grid.GridStaticSectionState.RowState as a bean
               Will serialize class com.vaadin.shared.ui.grid.GridStaticSectionState.CellState as a bean
               Will serialize class com.vaadin.shared.ui.grid.GridStaticCellType as an enum
               Visiting ImageConnector with ConnectorInitVisitor
                  ImageConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.image.ImageState as a bean
               Visiting InlineDateFieldConnector with ConnectorInitVisitor
                  InlineDateFieldConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.datefield.InlineDateFieldState as a bean
               Visiting JavaScriptManagerConnector with ConnectorInitVisitor
                  JavaScriptManagerConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.extension.javascriptmanager.JavaScriptManagerState as a bean
               Visiting LabelConnector with ConnectorInitVisitor
                  LabelConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.label.LabelState as a bean
               Will serialize class com.vaadin.shared.ui.label.ContentMode as an enum
               Visiting LinkConnector with ConnectorInitVisitor
                  LinkConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.link.LinkState as a bean
               Will serialize class com.vaadin.shared.ui.BorderStyle as an enum
               Visiting ListSelectConnector with ConnectorInitVisitor
                  ListSelectConnector will be in the eager bundle
               Visiting NativeButtonConnector with ConnectorInitVisitor
                  NativeButtonConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.button.NativeButtonState as a bean
               Visiting NativeSelectConnector with ConnectorInitVisitor
                  NativeSelectConnector will be in the eager bundle
               Visiting OptionGroupConnector with ConnectorInitVisitor
                  OptionGroupConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.optiongroup.OptionGroupState as a bean
               Visiting PasswordFieldConnector with ConnectorInitVisitor
                  PasswordFieldConnector will be in the eager bundle
               Visiting PopupDateFieldConnector with ConnectorInitVisitor
                  PopupDateFieldConnector will be in the eager bundle
               Visiting ProgressBarConnector with ConnectorInitVisitor
                  ProgressBarConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.progressindicator.ProgressBarState as a bean
               Visiting ProgressIndicatorConnector with ConnectorInitVisitor
                  ProgressIndicatorConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.progressindicator.ProgressIndicatorState as a bean
               Visiting SliderConnector with ConnectorInitVisitor
                  SliderConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.slider.SliderState as a bean
               Will serialize class com.vaadin.shared.ui.slider.SliderOrientation as an enum
               Visiting TextAreaConnector with ConnectorInitVisitor
                  TextAreaConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.textarea.TextAreaState as a bean
               Visiting TextFieldConnector with ConnectorInitVisitor
                  TextFieldConnector will be in the eager bundle
               Visiting TreeConnector with ConnectorInitVisitor
                  TreeConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.tree.TreeState as a bean
               Visiting UIConnector with ConnectorInitVisitor
                  UIConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.ui.UIState as a bean
               Will serialize class com.vaadin.shared.ui.ui.UIState.TooltipConfigurationState as a bean
               Will serialize class com.vaadin.shared.ui.ui.UIState.LoadingIndicatorConfigurationState as a bean
               Will serialize class com.vaadin.shared.ui.ui.UIState.PushConfigurationState as a bean
               Will serialize class com.vaadin.shared.ui.ui.PageState as a bean
               Will serialize class com.vaadin.shared.ui.ui.UIState.NotificationTypeConfiguration as a bean
               Will serialize class com.vaadin.shared.communication.PushMode as an enum
               Will serialize class com.vaadin.shared.ui.ui.NotificationRole as an enum
               Will serialize class com.vaadin.shared.ui.ui.UIState.LocaleServiceState as a bean
               Will serialize class com.vaadin.shared.ui.ui.UIState.LocaleData as a bean
               Visiting UploadConnector with ConnectorInitVisitor
                  UploadConnector will be in the eager bundle
               Visiting VideoConnector with ConnectorInitVisitor
                  VideoConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.video.VideoState as a bean
               Visiting JavaScriptRendererConnector with ConnectorInitVisitor
                  JavaScriptRendererConnector will be in the eager bundle
               Visiting ButtonRendererConnector with ConnectorInitVisitor
                  ButtonRendererConnector will be in the eager bundle
               Visiting DateRendererConnector with ConnectorInitVisitor
                  DateRendererConnector will be in the eager bundle
               Visiting UnsafeHtmlRendererConnector with ConnectorInitVisitor
                  UnsafeHtmlRendererConnector will be in the eager bundle
               Visiting ImageRendererConnector with ConnectorInitVisitor
                  ImageRendererConnector will be in the eager bundle
               Visiting NumberRendererConnector with ConnectorInitVisitor
                  NumberRendererConnector will be in the eager bundle
               Visiting ProgressBarRendererConnector with ConnectorInitVisitor
                  ProgressBarRendererConnector will be in the eager bundle
               Visiting TextRendererConnector with ConnectorInitVisitor
                  TextRendererConnector will be in the eager bundle
               Will serialize class com.vaadin.shared.ui.grid.ScrollDestination as an enum
               Will serialize class com.vaadin.shared.MouseEventDetails as a bean
               Will serialize class com.vaadin.shared.MouseEventDetails.MouseButton as an enum
               Will serialize class com.vaadin.addon.touchkit.gwt.client.vcom.Position as a bean
            Populating AbsoluteLayoutConnector bundle
               Visiting AbsoluteLayoutConnector with ConnectorInitVisitor
                  AbsoluteLayoutConnector will be in the AbsoluteLayoutConnector bundle
               Will serialize class com.vaadin.shared.ui.absolutelayout.AbsoluteLayoutState as a bean
            Populating AccordionConnector bundle
               Visiting AccordionConnector with ConnectorInitVisitor
                  AccordionConnector will be in the AccordionConnector bundle
               Will serialize class com.vaadin.shared.ui.accordion.AccordionState as a bean
               Will serialize class com.vaadin.shared.ui.tabsheet.TabState as a bean
            Populating CalendarConnector bundle
               Visiting CalendarConnector with ConnectorInitVisitor
                  CalendarConnector will be in the CalendarConnector bundle
               Will serialize class com.vaadin.shared.ui.calendar.CalendarState as a bean
               Will serialize class com.vaadin.shared.ui.calendar.CalendarState.Action as a bean
               Will serialize class com.vaadin.shared.ui.calendar.CalendarState.Event as a bean
               Will serialize class com.vaadin.shared.ui.calendar.CalendarState.Day as a bean
            Populating ColorPickerConnector bundle
               Visiting ColorPickerConnector with ConnectorInitVisitor
                  ColorPickerConnector will be in the ColorPickerConnector bundle
               Will serialize class com.vaadin.shared.ui.colorpicker.ColorPickerState as a bean
            Populating ColorPickerAreaConnector bundle
               Visiting ColorPickerAreaConnector with ConnectorInitVisitor
                  ColorPickerAreaConnector will be in the ColorPickerAreaConnector bundle
               Will serialize class com.vaadin.shared.ui.colorpicker.ColorPickerState as a bean
            Populating ComboBoxConnector bundle
               Visiting ComboBoxConnector with ConnectorInitVisitor
                  ComboBoxConnector will be in the ComboBoxConnector bundle
               Will serialize class com.vaadin.shared.ui.combobox.ComboBoxState as a bean
            Populating CustomLayoutConnector bundle
               Visiting CustomLayoutConnector with ConnectorInitVisitor
                  CustomLayoutConnector will be in the CustomLayoutConnector bundle
               Will serialize class com.vaadin.shared.ui.customlayout.CustomLayoutState as a bean
            Populating GridLayoutConnector bundle
               Visiting GridLayoutConnector with ConnectorInitVisitor
                  GridLayoutConnector will be in the GridLayoutConnector bundle
               Will serialize class com.vaadin.shared.ui.gridlayout.GridLayoutState as a bean
               Will serialize class com.vaadin.shared.ui.gridlayout.GridLayoutState.ChildComponentData as a bean
            Populating HorizontalLayoutConnector bundle
               Visiting HorizontalLayoutConnector with ConnectorInitVisitor
                  HorizontalLayoutConnector will be in the HorizontalLayoutConnector bundle
               Will serialize class com.vaadin.shared.ui.orderedlayout.HorizontalLayoutState as a bean
            Populating HorizontalSplitPanelConnector bundle
               Visiting HorizontalSplitPanelConnector with ConnectorInitVisitor
                  HorizontalSplitPanelConnector will be in the HorizontalSplitPanelConnector bundle
               Will serialize class com.vaadin.shared.ui.splitpanel.HorizontalSplitPanelState as a bean
               Will serialize class com.vaadin.shared.ui.splitpanel.AbstractSplitPanelState.SplitterState as a bean
            Populating MenuBarConnector bundle
               Visiting MenuBarConnector with ConnectorInitVisitor
                  MenuBarConnector will be in the MenuBarConnector bundle
               Will serialize class com.vaadin.shared.ui.menubar.MenuBarState as a bean
            Populating PanelConnector bundle
               Visiting PanelConnector with ConnectorInitVisitor
                  PanelConnector will be in the PanelConnector bundle
               Will serialize class com.vaadin.shared.ui.panel.PanelState as a bean
            Populating PopupViewConnector bundle
               Visiting PopupViewConnector with ConnectorInitVisitor
                  PopupViewConnector will be in the PopupViewConnector bundle
               Will serialize class com.vaadin.shared.ui.popupview.PopupViewState as a bean
            Populating RichTextAreaConnector bundle
               Visiting RichTextAreaConnector with ConnectorInitVisitor
                  RichTextAreaConnector will be in the RichTextAreaConnector bundle
            Populating TabsheetConnector bundle
               Visiting TabsheetConnector with ConnectorInitVisitor
                  TabsheetConnector will be in the TabsheetConnector bundle
               Will serialize class com.vaadin.shared.ui.tabsheet.TabsheetState as a bean
               Will serialize class com.vaadin.shared.ui.tabsheet.TabState as a bean
            Populating TableConnector bundle
               Visiting TableConnector with ConnectorInitVisitor
                  TableConnector will be in the TableConnector bundle
               Will serialize class com.vaadin.shared.ui.table.TableState as a bean
            Populating TreeTableConnector bundle
               Visiting TreeTableConnector with ConnectorInitVisitor
                  TreeTableConnector will be in the TreeTableConnector bundle
               Will serialize class com.vaadin.shared.ui.treetable.TreeTableState as a bean
            Populating TwinColSelectConnector bundle
               Visiting TwinColSelectConnector with ConnectorInitVisitor
                  TwinColSelectConnector will be in the TwinColSelectConnector bundle
               Will serialize class com.vaadin.shared.ui.twincolselect.TwinColSelectState as a bean
            Populating VerticalLayoutConnector bundle
               Visiting VerticalLayoutConnector with ConnectorInitVisitor
                  VerticalLayoutConnector will be in the VerticalLayoutConnector bundle
               Will serialize class com.vaadin.shared.ui.orderedlayout.VerticalLayoutState as a bean
            Populating VerticalSplitPanelConnector bundle
               Visiting VerticalSplitPanelConnector with ConnectorInitVisitor
                  VerticalSplitPanelConnector will be in the VerticalSplitPanelConnector bundle
               Will serialize class com.vaadin.shared.ui.splitpanel.VerticalSplitPanelState as a bean
               Will serialize class com.vaadin.shared.ui.splitpanel.AbstractSplitPanelState.SplitterState as a bean
            Populating WindowConnector bundle
               Visiting WindowConnector with ConnectorInitVisitor
                  WindowConnector will be in the WindowConnector bundle
               Will serialize class com.vaadin.shared.ui.window.WindowState as a bean
            Populating ColorPickerGradientConnector bundle
               Visiting ColorPickerGradientConnector with ConnectorInitVisitor
                  ColorPickerGradientConnector will be in the ColorPickerGradientConnector bundle
               Will serialize class com.vaadin.shared.ui.colorpicker.ColorPickerGradientState as a bean
            Populating ColorPickerGridConnector bundle
               Visiting ColorPickerGridConnector with ConnectorInitVisitor
                  ColorPickerGridConnector will be in the ColorPickerGridConnector bundle
               Will serialize class com.vaadin.shared.ui.colorpicker.ColorPickerGridState as a bean
   Adding '1' new generated units
      Warnings in 'generated://FB62BB95E336000305C01C597D900DC3/com/vaadin/client/metadata/ConnectorBundleLoaderImpl.java'
         See snapshot: /var/folders/_x/0r860r594bb1n7z1xb5cp07m0000gn/T/com.vaadin.client.metadata.ConnectorBundleLoaderImpl4942210137521135509.java
      Ignored 1 unit with compilation errors in first pass.
Compile with -strict or with -logLevel set to DEBUG or WARN to see all errors.
   Tracing compile failure path for type 'com.vaadin.addon.touchkit.gwt.client.vcom.navigation.NavigationManagerConnector'
      [ERROR]
 Errors in 'jar:file:/Users/florian/.ivy2/cache/com.vaadin.addon/vaadin-touchkit-agpl/jars/vaadin-touchkit-agpl-4.1.0.alpha1.jar!/com/vaadin/addon/touchkit/gwt/client/vcom/navigation/NavigationManagerConnector.java'
         [ERROR]
 Line 110: The method getMessageHandler() is undefined for the type ApplicationConnection
         [ERROR]
 Line 115: The method getMessageHandler() is undefined for the type ApplicationConnection
   [ERROR]
 Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly
   Computing all possible rebind results for 'com.vaadin.client.ui.dd.VAcceptCriterionFactory'
      Rebinding com.vaadin.client.ui.dd.VAcceptCriterionFactory
         Invoking generator com.vaadin.server.widgetsetutils.AcceptCriteriaFactoryGenerator
            Detecting available criteria ...
            creating mapping for com.vaadin.event.dd.acceptcriteria.AcceptAll
            creating mapping for com.vaadin.event.dd.acceptcriteria.And
            creating mapping for com.vaadin.event.dd.acceptcriteria.ContainsDataFlavor
            creating mapping for com.vaadin.event.dd.acceptcriteria.SourceIs
            creating mapping for com.vaadin.ui.AbstractSelect.TargetItemIs
            creating mapping for com.vaadin.ui.AbstractSelect.AcceptItem
            creating mapping for com.vaadin.ui.Table.TableDropCriterion
            creating mapping for com.vaadin.ui.Tree.TreeDropCriterion
            creating mapping for com.vaadin.event.dd.acceptcriteria.Not
            creating mapping for com.vaadin.event.dd.acceptcriteria.Or
            creating mapping for com.vaadin.event.dd.acceptcriteria.ServerSideCriterion
            creating mapping for com.vaadin.event.dd.acceptcriteria.SourceIsTarget
            creating mapping for com.vaadin.event.dd.acceptcriteria.TargetDetailIs
            creating mapping for com.vaadin.ui.Tree.TargetInSubtree
            Done. (0seconds)
Widgetset compilation failed

I already cleaned up the ivxy cahce and reloaded all dependencies, can someone help me?
Greetings,
Florian

Hi,

Did you remember to tell Ivy to reaload settings after you made the change? Sometimes ivy does not update the widget compilation dependencies while resolving, but uses the old version for the compilation.

//Teemu

ApplicationConnection.getMessageHandler() exists since 7.6 and not in 7.5, so it would seem that you have a vaadin-client-7.5.x.jar hanging around somewhere

Thank you for your help. After I cleaned all ivy cashes and made a new resolve the compilitation error disappeared. The cash war the reason for the error.