compilation error in eclipse IDE for a java program.

Question

i have following code for which eclipse giving following compilation error

Multiple markers at this line
- The hierarchy of the type TutorialsApplication is inconsistent
- The type com.vaadin.terminal.Terminal$ErrorListener cannot be resolved. It is indirectly referenced 
 from required .class files
- The type com.vaadin.terminal.URIHandler cannot be resolved. It is indirectly referenced from 
 required .class files

and my code is :

                package com.example.tutorials;

                import com.example.component.Window.HomeWindow;
                import com.vaadin.Application;

                @SuppressWarnings("serial")
                public class TutorialsApplication extends Application {
            // @Override
                public void init() {
            HomeWindow main = new HomeWindow("Welcome to FunFusion Content Management System");
               setMainWindow(main);
               main.initWindow();
            }
             }

Answer 1

That means that the vaadin library, whatever it may be, depends on some third-party JAR file or files, which must be present in your CLASSPATH when you compile and run your application, but which you're missing.

Answer 2

Perhaps you have a version of the Vaadin JAR included in your application that is not the same as the version of the Vaadin Eclipse plugin that you are using. Try updating both.