Apps Problems creating table rows from code

[znero]

I'm currently creating an application that adds rows to an existing table. The code looks like this:

TextView exampleTextView = (TextView) messageView.findViewById(R.id.exampleLabel);
exampleTextView.setText(locationMsg.getMessageContent());
		
TableRow tr = (TableRow) messageView.findViewById(R.id.tableRow);
tr.addView(exampleTextView);
table.addView(tr);

In the XML I've got a table layout that's inside a linearLayout thats inside a frameLayout thats inside a tabwidget and it looks like this:

<TableLayout
	android:id="@+id/distanceTable" 
	android:layout_height="wrap_content"
	android:layout_width="wrap_content"
	android:layout_gravity="center"
	android:background="#DDDDDD"
	android:stretchColumns="1" >
	<TableRow>
		<TextView
		android:textColor="#000000"
		android:text="@string/label_device"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
			
		<TextView
		android:textColor="#000000"
		android:text="@string/label_distance"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
		<TextView
		android:textColor="#000000"
		android:text="@string/label_time"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
	</TableRow>
	<TableRow android:id="@+id/tableRow" >
		<TextView
		android:id="@+id/exampleLabel"
		android:textColor="#000000"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
		<TextView
		android:id="@+id/anotherExampleLabel"
		android:textColor="#000000"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
		<TextView
		android:id="@+id/someOtherLabel"
		android:textColor="#000000"
		android:layout_gravity="center"
		android:padding="3dip"
		android:textSize="18sp" />
	</TableRow>
</TableLayout>

Creating those labels works fine, but when I want to add the text to a row, the application crashes and I get an "IllegalStateException", the detailed message is: "The specified child already has a parent. You must call removeView() on the child's parent first."

I don't quite get it. When I look at a tutorial like this there isn't anything that has to be removed first.
So what exactly am I doing wrong?