i m currently using the android 2.0.1 sdk...i have tried on all sdk's but i m not able to run my project..it is not resolving

import com.google.android.gtalkservice.GTalkServiceConsta nts;
import com.google.android.gtalkservice.GroupChatInvitatio n;
import com.google.android.gtalkservice.IChatListener;
import com.google.android.gtalkservice.IChatSession;
import com.google.android.gtalkservice.IGTalkConnection;
import com.google.android.gtalkservice.IGTalkService;
import com.google.android.gtalkservice.IGroupChatInvitati onListener;
import com.google.android.gtalkservice.IImSession;
import com.google.android.gtalkservice.IRosterListener;
import com.google.android.gtalkservice.Presence;
import android.provider.Im.Contacts;
import android.provider.Telephony.Sms;

please help..thanks in advance