Question

Possible Duplicate:
Android RuntimeException: Unable to instantiate the service

Trying to get GCM up and running but my device is sending a registration request, but getting no response back from the GCM server. Below I included my manifest and GCMIntentService definition, and my call to register with the GCM server. I’ve been staring at it so long I might be missing something obvious, if so I apologize.

All ideas welcome!

Here is my manifest:

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

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

    <permission android:name="PACKAGE.permission.C2D_MESSAGE" android:protectionLevel="signature" />
    <uses-permission android:name="PACKAGE.permission.C2D_MESSAGE" /> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <service android:name=".GCMIntentService" 
            android:enabled="true"/>

        <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="PACKAGE.GCMIntentService" />
            </intent-filter>
        </receiver>


        <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>
    </application>

</manifest>

Here is my GCMIntentService to handle the return from GCM:

import com.google.android.gcm.GCMBaseIntentService;
import android.content.Context;
import android.content.Intent;
import android.util.Log;


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

    public GCMIntentService(String senderId) {
        super(senderId);
        Log.d("GCMIntentService", senderId);
    }

    @Override
    protected void onError(Context arg0, String arg1) {
        Log.d("onError", arg1);
    }

    @Override
    protected boolean onRecoverableError(Context context, String errorId){
        Log.d("onRecoverableError", errorId);
        return false;
    }

    @Override
    protected void onMessage(Context arg0, Intent arg1) {
        Log.d("onMessage", String.valueOf(arg1));
    }

    @Override
    protected void onRegistered(Context arg0, String arg1) {
        Log.d("onRegistered", arg1);
    }

    @Override
    protected void onUnregistered(Context arg0, String arg1) {
        Log.d("onUnregistered", arg1);
    }
}

I attempt to register with the following in the onCreate method of my main class:

GCMRegistrar.checkDevice(this);
GCMRegistrar.checkManifest(this);

final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
    GCMRegistrar.register(this, SENDER_ID);
} else {
    Log.d(TAG, "Already registered");
}

UPDATE
I have tried Raz’s suggestion and I got the following error:

07-03 12:07:40.459: W/dalvikvm(341): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
07-03 12:07:40.508: E/AndroidRuntime(341): FATAL EXCEPTION: main
07-03 12:07:40.508: E/AndroidRuntime(341): java.lang.RuntimeException: Unable to instantiate service package.gcm2.GCMIntentService: java.lang.InstantiationException: package.gcm2.GCMIntentService
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2943)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.app.ActivityThread.access$3300(ActivityThread.java:125)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.os.Handler.dispatchMessage(Handler.java:99)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.os.Looper.loop(Looper.java:123)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.app.ActivityThread.main(ActivityThread.java:4627)
07-03 12:07:40.508: E/AndroidRuntime(341):  at java.lang.reflect.Method.invokeNative(Native Method)
07-03 12:07:40.508: E/AndroidRuntime(341):  at java.lang.reflect.Method.invoke(Method.java:521)
07-03 12:07:40.508: E/AndroidRuntime(341):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-03 12:07:40.508: E/AndroidRuntime(341):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-03 12:07:40.508: E/AndroidRuntime(341):  at dalvik.system.NativeStart.main(Native Method)
07-03 12:07:40.508: E/AndroidRuntime(341): Caused by: java.lang.InstantiationException: package.gcm2.GCMIntentService
07-03 12:07:40.508: E/AndroidRuntime(341):  at java.lang.Class.newInstanceImpl(Native Method)
07-03 12:07:40.508: E/AndroidRuntime(341):  at java.lang.Class.newInstance(Class.java:1429)
07-03 12:07:40.508: E/AndroidRuntime(341):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2940)
07-03 12:07:40.508: E/AndroidRuntime(341):  ... 10 more
07-03 12:08:34.560: I/Process(341): Sending signal. PID: 341 SIG: 9

Answer 1

In your manifest try this:

<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="eimmer.liav.elucidate.gcm2" />
        </intent-filter>
    </receiver>

The category name needs to be your application package.

If the service is in the same package name the leave it like you did else change it to your real package instead of .GCMIntentService but then you would also need to extend and override the GCMBroadcastReceiver.

If your package is not eimmer.liav.elucidate.gcm2.GCMIntentService then you must extend GCMBroadcastReceiver and override the function getGCMIntentServiceClassName().
In that function return the real package and class in string example: eimmer.liav.example.GCMIntentService.

Also don’t forget to change the receiver name to the new one. example:

 <receiver
        android:name="eimmer.liav.example.MyGCMBroadcastReceiver"
        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="eimmer.liav.elucidate.gcm2" />
        </intent-filter>
    </receiver>

Further more change your service name to:

<service android:name="eimmer.liav.example.GCMIntentService" 
            android:enabled="true"/>

One other thing according to Google you need to change your constructor to default one and send some string like this:

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

The string is not really important as far as I know.

Have fun.