com.vaadin.data.util.QueryContainer missing in vaadin 7

Vaadin 6 / 7 / 8
1

I update project vaadin 6 to 7 . I have problem
com.vaadin.data.util.QueryContainer
com.vaadin.terminal.gwt.client.ui.Icon
com.vaadin.server.HttpServletRequestListener;
com.vaadin.terminal.gwt.server.WebApplicationContext
it missing in use import

2

Hi,

yes, there are quite a lot of changes when you upgrade. Please use
this wiki page
 as a starting point and post further questions if anything remains unclear.

3

my problem are missing import. you can see in attach file
13207.png
13208.png