java.lang.IllegalStateException: Failed to find mapper from controller

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java.lang.IllegalStateException: Failed to find mapper from controller
at com.vaadin.designer.model.EditorModelUtil.getComponentFromAnyMapper(EditorModelUtil.java:78)
at com.vaadin.designer.eclipse.views.HierarchyOutlineView$ModelHandler.getTitle(HierarchyOutlineView.java:961)
at com.vaadin.designer.eclipse.views.HierarchyOutlineView$ModelHandler.access$1(HierarchyOutlineView.java:953)
at com.vaadin.designer.eclipse.views.HierarchyOutlineView$HierarchyOutlineLabelProvider.getColumnText(HierarchyOutlineView.java:825)
at org.eclipse.jface.viewers.TableColumnViewerLabelProvider.update(TableColumnViewerLabelProvider.java:66)
at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:154)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:949)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1029)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2176)
at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:843)
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpandToLevel(AbstractTreeViewer.java:1763)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpandToLevel(AbstractTreeViewer.java:1773)
at org.eclipse.jface.viewers.AbstractTreeViewer.expandToLevel(AbstractTreeViewer.java:1071)
at org.eclipse.jface.viewers.AbstractTreeViewer.expandToLevel(AbstractTreeViewer.java:1052)
at com.vaadin.designer.eclipse.views.HierarchyOutlineView.initTreeViewerData(HierarchyOutlineView.java:708)
at com.vaadin.designer.eclipse.views.HierarchyOutlineView.onEditorModelChanged(HierarchyOutlineView.java:565)
at com.vaadin.designer.eclipse.editors.VaadinEditorPart.fireEditorModelChanged(VaadinEditorPart.java:721)
at com.vaadin.designer.eclipse.editors.VaadinEditorPart.setController(VaadinEditorPart.java:975)
at com.vaadin.designer.eclipse.editors.VaadinEditorPart.access$9(VaadinEditorPart.java:955)
at com.vaadin.designer.eclipse.editors.VaadinEditorPart$PartHandler$1.run(VaadinEditorPart.java:1191)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3794)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at com.vaadin.designer.eclipse.editors.VaadinEditor$LicenseHandler$1.run(VaadinEditor.java:1734)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3794)
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 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)

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