The method build() is undefined for the type NotificationCompat.Builder

添加ActionBarSherlock之前,一切顺利.

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TaskStackBuilder;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;

public class NotificationActivity extends BroadcastReceiver {

    NotificationManager nm;

    @Override
    public void onReceive(Context context,Intent intent) {
        nm = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        int notifyID = 1;
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                context)
                .setSmallIcon(R.drawable.zcicon)
                .setAutoCancel(true)
                .setDefaults(
                        Notification.DEFAULT_SOUND
                                | Notification.DEFAULT_LIGHTS)
                .setTicker("mytitle").setContentTitle("mycontent")
                .setContentText("text,text");
        Intent resultIntent = new Intent(context,CalcareReader.class);
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        // Adds the back stack for the Intent (but not the Intent itself)
        stackBuilder.addParentStack(MyActivity.class);
        // Adds the Intent that starts the Activity to the top of the stack
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(resultPendingIntent);

        nm.notify(notifyID,mBuilder.build()); // error here
    }
}