Gin problem using GWT and Guice. - java.lang.RuntimeException: Deferred binding failed for

I have a problem using Gin. Here is a simple example.

@GinModules(AppModule.class)
public interface AppInjector extends Ginjector
{
  MainForm getMainPanel();
  TemplateForm getHeaderForm();
}

then here is Module

import com.google.inject.Singleton;
    public class AppModule extends AbstractGinModule
    {
    @Override
    protected void configure()
    {
      bind(MainForm.class).in(Singleton.class);
    }
    }

and the Entry point

public class MySampleApplication implements EntryPoint

private final AppInjector injector = GWT.create(AppInjector.class);

public void onModuleLoad()
{
  MainForm mf = injector.getMainPanel();
  RootPanel.get().add(mf);
}
}

And the module xml file

<module rename-to="MySampleApplication">

    <!-- Inherit the core Web Toolkit stuff.                  -->
    <inherits name='com.google.gwt.user.User'/>

    <!-- Specify the app entry point class.                   -->
    <entry-point class='com.mySampleApplication.client.MySampleApplication'/>

    <inherits name="com.google.gwt.inject.Inject"/>

    <!-- Specify the app servlets.                   -->
    <servlet path='/MySampleApplicationService' class='com.mySampleApplication.server.MySampleApplicationServiceImpl'/>

</module>

After i run this code i got an exception :

ERROR: Failed to create an instance of 'com.mySampleApplication.client.MySampleApplication' via def开发者_高级运维erred binding . java.lang.RuntimeException: Deferred binding failed for 'com.mySampleApplication.client.gin.AppInjector' (did you forget to inherit a required module?).

I tried with gin 1.0 and guice 2.0.

Please, advice.

Thanks.

@GinModules(AppClientModule.class)

should probably be

@GinModules(AppModule.class)

Update:

The error is in line declaring AppInjector. It should be:

interface AppInjector extends Ginjector {