Bug 130094 [regression] cannot edit group in Cheat Sheets
steps to reproduce: - create a report using Grouped Listing template - switch to Cheat Sheets, start/restart the tutorial - follow the steps to 1) create data source; 2) create data set; 3) bind the data to the table; and 4) edit the group expected behavior: - group dialog should be displayed actual behavior: - error message displayed. please refer to the attached image for detail
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/views/DefaultNodeProvider.java
template.setName( name );
					}
					else
					{
						ExceptionHandler.openErrorMessageBox( Messages.getString( "performCreatePlaceHolder.errorMessage.title" ), 
								Messages.getString( "performCreatePlaceHolder.errorMessage.content" ) ); 
					}
				}
				else
				{
					return false;
				}
			}
			catch ( SemanticException e )
			{
				ExceptionHandler.handle( e );
				return false;
			}
		} while ( bIsNameExist == true );
		return true;
	}
	protected DesignElementHandle createElement( String type ) throws Exception
	{
		return ElementProcessorFactory.createProcessor( type )
				.createElement( null );
	}
	protected DesignElementHandle createElement( SlotHandle slotHandle,
			String type ) throws Exception
	{
		if ( type == null )