Error with API of Microsoft Bing Translate on Android

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http://stackoverflow.com – I have a problem with this API. I think I use it the right way, but it doesn't work. That's my code: import com.memetix.mst.language.Language; import com.memetix.mst.translate.Translate; import android.os.Bundle; import android.app.Activity; import android.util.Log; import android.widget.TextView; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { Translate.setClientId("myID"); Translate.setClientSecret("myID"); super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextVie (HowTos)