FragmentTabHost: "No tab known" obwohl initialisiert

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.TabHost.TabContentFactory;
import android.widget.TabHost.TabSpec;
import de.FragmentTabs.R;


public class ControllerActivity extends FragmentActivity implements
		TabContentFactory {
	private FragmentTabHost fragTabHost;


	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);


		setContentView(R.layout.controller_activity_layout);


		fragTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
		fragTabHost.setup(this, getSupportFragmentManager(),
				R.id.realtabcontent);


		TabSpec ts = fragTabHost.newTabSpec("CON1");
		ts.setContent(this);
		ts.setIndicator("CON 1");


		fragTabHost.addTab(ts);
	}


	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.controller, menu);


		return true;
	}


	@Override
	public View createTabContent(String tag) {
		LayoutInflater inflater = LayoutInflater.from(ControllerActivity.this);


		View v;


		if (tag.startsWith("CON")) {
			v = inflater.inflate(R.layout.connection_fragment_layout, null);


			return v;
		}


		return null;
	}
}

@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);


		this.savedInstanceState = savedInstanceState;
		
		setContentView(R.layout.controller_activity_layout);


		eventHandler = new EventHandler(this);
		
		fragTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
		fragTabHost.setup(getBaseContext(), getFragmentManager());
		
		getLayoutInflater().inflate(R.layout.connection_fragment_layout, fragTabHost.getTabContentView(), true);
		TabSpec ts = fragTabHost.newTabSpec("CON1").setIndicator("Connection 1").setContent(R.id.connection_fragment_layout);
		fragTabHost.addTab(ts);
	}