[android-developers] google-api-java-client android calendar setup problem

I read the instruction in this page
http://samples.google-api-java-client.googlecode.com/hg/calendar-android-sample/instructions.html?r=default
to setup the project. But after I did as said in the page , eclipse
still can't find the packages below .It seemed no help information
online .Any one can help me ? THX a lot.
import com.google.api.services.calendar.CalendarClient;
import com.google.api.services.calendar.CalendarRequestInitializer;
import com.google.api.services.calendar.CalendarUrl;
import com.google.api.services.calendar.model.CalendarEntry;
import com.google.api.services.calendar.model.CalendarFeed;

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