Question

so, I basically was following this tutorial step by step
http://developer.android.com/guide/google/gcm/demo.html
I made the server give me the “No devices registered!”
all I have to do is make the app launch, that is where my problem start.
log cat registers:

"Trace - error opening trace file: no such file or directory (2)
AndroidRunTime - Shutting Down VM
dalvikvm - threadid=1: thread exiting with uncaught exception (group=0x40a13300)
AndroidRunTime - FATAL EXCEPTION: main"

MANIFEST:

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

    <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16"/>
    <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.google.android.gcm.demo.app.permission.C2D_MESSAGE"
        android:protectionLevel="signature" />
    <uses-permission
        android:name="com.google.android.gcm.demo.app.permission.C2D_MESSAGE" />
    <uses-permission
        android:name="com.google.android.c2dm.permission.RECEIVE" />

    <!-- Main activity. -->
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".DemoActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait" >
            <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>
                <!-- Receives the actual messages. -->
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
                <!-- Receives the registration id. -->
                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
                <category android:name="com.google.android.gcm.demo.app" />
            </intent-filter>
        </receiver>

        <service android:name=".GCMIntentService" />
    </application>

</manifest>

By the way, I imported the project to make sure that the problem is not from my lousy programming.

Answer 1

Make sure it’s Google API emulator. Also login with a gmail account in the emulator.