Question

How to get the registrationId ?

I always get the ACCOUNT_MISSING error

MainActivity

package com.example.gcm;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;
import com.google.android.gcm.GCMRegistrar;

public class MainActivity extends Activity {

    private static final String SENDER_ID = "45552950387";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        GCMRegistrar.checkDevice(this);
        GCMRegistrar.checkManifest(this);
        final String regId = GCMRegistrar.getRegistrationId(this);
        if (regId.equals("")) {
          GCMRegistrar.register(this, SENDER_ID);
          Log.d("show", "Already registered1"+regId);
        } else {
          Log.d("show", "Already registered");
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }


}

GCMIntentService

package com.example.gcm;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.google.android.gcm.GCMBaseIntentService;

public class GCMIntentService extends GCMBaseIntentService {
    private static final String TAG = "GCMIntentService";

    public GCMIntentService() {
        super("45552950387");
    }

    @Override
    protected void onRegistered(Context context, String registrationId) {
        Log.i(TAG, "Device registered: regId = " + registrationId);
    }

    @Override
    protected void onUnregistered(Context context, String registrationId) {
        Log.i(TAG, "Device unregistered");
    }

    @Override
    protected void onMessage(Context context, Intent intent) {
        Log.i(TAG, "Received message");
        String a = intent.getStringExtra("A");
        generateNotification(context, a);
    }

    @Override
    protected void onDeletedMessages(Context context, int total) {
        Log.i(TAG, "Received deleted messages notification");

    }

    @Override
    public void onError(Context context, String errorId) {
        Log.i(TAG, "Received error: " + errorId);

    }

    @Override
    protected boolean onRecoverableError(Context context, String errorId) {
        Log.i(TAG, "Received recoverable error: " + errorId);
        return super.onRecoverableError(context, errorId);
    }

    private void generateNotification(Context context, String message) {

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

        Notification notification = new Notification();
        notification.icon = R.drawable.ic_launcher;
        notification.tickerText = "notification on status bar.";
        notification.defaults = Notification.DEFAULT_ALL;
        notification.setLatestEventInfo(context, "Title", message, null);
        notificationManager.notify(0, notification);
    }
}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.gcm"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="15" />

<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />

<permission android:name="com.example.gcm.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.example.gcm.permission.C2D_MESSAGE" /> 

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <receiver android:name="com.google.android.gcm.GCMBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND" >
      <intent-filter>
        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
        <category android:name="com.example.gcm" />
      </intent-filter>
    </receiver>
 <service android:name="com.example.gcm.GCMIntentService" />
</application>

This is my LogCat

08-08 13:54:19.844: D/dalvikvm(618): GC_EXPLICIT freed 45K, 49% free 2751K/5379K, external 1625K/2137K, paused 58ms
08-08 13:54:22.944: D/GCMRegistrar(618): resetting backoff for com.example.gcm
08-08 13:54:22.944: V/GCMRegistrar(618): Registering app com.example.gcm of senders 45552950387
08-08 13:54:22.994: D/show(618): Already registered1
08-08 13:54:23.224: V/GCMBroadcastReceiver(618): onReceive: com.google.android.c2dm.intent.REGISTRATION
08-08 13:54:23.224: V/GCMBroadcastReceiver(618): GCM IntentService class: com.example.gcm.GCMIntentService
08-08 13:54:23.224: V/GCMBaseIntentService(618): Acquiring wakelock
08-08 13:54:23.464: V/GCMBaseIntentService(618): Intent service name: GCMIntentService-45552950387-3
08-08 13:54:23.504: D/GCMBaseIntentService(618): handleRegistration: registrationId = null, error = ACCOUNT_MISSING, unregistered = null
08-08 13:54:23.504: D/GCMBaseIntentService(618): Registration error: ACCOUNT_MISSING
08-08 13:54:23.524: I/GCMIntentService(618): Received error: ACCOUNT_MISSING
08-08 13:54:23.524: V/GCMBaseIntentService(618): Releasing wakelock

I am sure the sender ID is correct and also import gcm.jar in the project classpath

Answer 1

ACCOUNT_MISSING error occurred when there is no Google account on the phone.

There is no Google account on the phone. The Android application
should ask the user to open the account manager and add a Google
account. Fix on the device side.

Check here for more information.