通知无法接受频道ID

Question

在下面的代码通知中但是它不能接受..（火焰通知）

  

错误：（82,17）错误：类Builder中的构造函数构建器无法应用于给定类型;       必需：上下文       发现：MyFirebaseMessagingService，String       原因：实际和正式的参数列表长度不同

String channelId = getString(R.string.default_notification_channel_id);
        Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder =
                new NotificationCompat.Builder(this, channelId) // error it cant accpet
                        .setSmallIcon(R.drawable.esap)
                        .setContentTitle(messageBody.get("title"))
                        .setContentText(messageBody.get("message"))
                        .setAutoCancel(true)
                        .setSound(defaultSoundUri)
                        .setContentIntent(pendingIntent);

        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);