Parse.com | Trying to get a list of subscribed channels leading to app crash, any help/ideas?

To show the user a list of his channels I did this:

package za.hseldo.client;

import android.app.Activity;
import android.os.Bundle;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.parse.ParseInstallation;

 public class Aansteekbord extends Activity {

Object[] myChannels;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.aansteekbord);

    myChannels = ParseInstallation.getCurrentInstallation().getList("channels").toArray();
    LinearLayout layout = (LinearLayout) findViewById(R.id.layoutA);

    for (int i = 0; i < myChannels.length - 1; i++) {
        TextView tempView = new TextView(getBaseContext());
        tempView.setText(myChannels[i].toString());
        layout.addView(tempView);
    }
}
}

I get an error at line 18. This is only an example, I have found the same in other areas, that the ParseInstallation.getCurrentInstallation().getList("channels") doesn's work. The documentation provides that code? Any thoughts?