Develop Reference

GPStracker code crash concept

Good evening and good week. We run this script from tutorial but my crash concept does not make an error in the code. nor to the errors refer to a particular line code. Please for your help.
Tutorial: http://gabesechansoftware.com/location-tracking/
01-26 15:36:06.751: I/Process(10528): Sending signal. PID: 10528 SIG: 9
01-26 15:36:18.251: D/AndroidRuntime(10613): Shutting down VM
01-26 15:36:18.251: W/dalvikvm(10613): threadid=1: thread exiting with uncaught exception (group=0x2b542210)
01-26 15:36:18.251: E/AndroidRuntime(10613): FATAL EXCEPTION: main
01-26 15:36:18.251: E/AndroidRuntime(10613): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{pack/pack.MainActivity}: java.lang.ClassNotFoundException: pack.MainActivity
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread.access$600(ActivityThread.java:127)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.os.Handler.dispatchMessage(Handler.java:99)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.os.Looper.loop(Looper.java:137)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread.main(ActivityThread.java:4441)
01-26 15:36:18.251: E/AndroidRuntime(10613): at java.lang.reflect.Method.invokeNative(Native Method)
01-26 15:36:18.251: E/AndroidRuntime(10613): at java.lang.reflect.Method.invoke(Method.java:511)
01-26 15:36:18.251: E/AndroidRuntime(10613): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-26 15:36:18.251: E/AndroidRuntime(10613): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-26 15:36:18.251: E/AndroidRuntime(10613): at dalvik.system.NativeStart.main(Native Method)
01-26 15:36:18.251: E/AndroidRuntime(10613): Caused by: java.lang.ClassNotFoundException: pack.MainActivity
01-26 15:36:18.251: E/AndroidRuntime(10613): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
01-26 15:36:18.251: E/AndroidRuntime(10613): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
01-26 15:36:18.251: E/AndroidRuntime(10613): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
01-26 15:36:18.251: E/AndroidRuntime(10613): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882)
01-26 15:36:18.251: E/AndroidRuntime(10613): ... 11 more
01-26 15:41:18.281: I/Process(10613): Sending signal. PID: 10613 SIG: 9
Manifest
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="my.pack"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="24" />
<permission
android:name="my.pack.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="my.pack.permission.MAPS_RECEIVE"/>
<uses-permission android:name="permission_name"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="My api key"/>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

You full activity name (package + class) is not the same in manifest and code. There's pack.MainActivity declared in manifest but it is not found in code.

Eclipse Android: Didn't find class

Im doing the following tutorial on creating an Android App using Google App Engine: https://cloud.google.com/developers/articles/how-to-build-mobile-app-with-app-engine-backend-tutorial
I am using Eclipse in Windows 7. I got to the part where you run the application to display the newly uploaded information from "places.csv". The problem is I'm getting the following error:
03-15 17:00:31.137: E/AndroidRuntime(1151): FATAL EXCEPTION: main
03-15 17:00:31.137: E/AndroidRuntime(1151): Process: com.apps.mobileassistant, PID: 1151
03-15 17:00:31.137: E/AndroidRuntime(1151): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.apps.mobileassistant/com.apps.mobileassistant.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.apps.mobileassistant.MainActivity" on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.apps.mobileassistant-2, /system/lib]]
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2102)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread.access$700(ActivityThread.java:135)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.os.Handler.dispatchMessage(Handler.java:102)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.os.Looper.loop(Looper.java:137)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread.main(ActivityThread.java:4998)
03-15 17:00:31.137: E/AndroidRuntime(1151): at java.lang.reflect.Method.invokeNative(Native Method)
03-15 17:00:31.137: E/AndroidRuntime(1151): at java.lang.reflect.Method.invoke(Method.java:515)
03-15 17:00:31.137: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
03-15 17:00:31.137: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
03-15 17:00:31.137: E/AndroidRuntime(1151): at dalvik.system.NativeStart.main(Native Method)
03-15 17:00:31.137: E/AndroidRuntime(1151): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.apps.mobileassistant.MainActivity" on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.apps.mobileassistant-2, /system/lib]]
03-15 17:00:31.137: E/AndroidRuntime(1151): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
03-15 17:00:31.137: E/AndroidRuntime(1151): at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
03-15 17:00:31.137: E/AndroidRuntime(1151): at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
03-15 17:00:31.137: E/AndroidRuntime(1151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2093)
MobileAssistant App Manifest.xml
<?xml version="1.0" encoding="utf-8" standalone="no"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.apps.mobileassistant">
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="19"/>
<uses-permission android:name="android.permission.INTERNET"/>
<permission android:name="com.apps.mobileassistant.permission.C2D_MESSAGE" android:protectionLevel="signature"/>
<uses-permission android:name="com.apps.mobileassistant.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.GET_ACCOUNTS"/>
<uses-permission android:name="android.permission.USE_CREDENTIALS"/>
<application android:allowBackup="true" android:icon="#drawable/ic_launcher" android:label="#string/app_name" android:theme="#style/AppTheme">
<activity android:label="#string/app_name" android:name="com.apps.mobileassistant.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<service android:name=".GCMIntentService"/>
<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"/>
<category android:name="com.apps.mobileassistant"/>
</intent-filter>
<intent-filter>
<action android:name="com.google.android.c2dm.intent.REGISTRATION"/>
<category android:name="com.apps.mobileassistant"/>
</intent-filter>
</receiver>
<activity android:launchMode="singleTop" android:name=".RegisterActivity"/>
</application>
</manifest>
Also when in debug mode I get a "Source Not Found" error in Thread[<1> main].
Can someone help me with this?

Just as it is exactly what your current message error is saying to you:
ComponentInfo{com.apps.mobileassistant/com.apps.mobileassistant.MainActivity}:
java.lang.ClassNotFoundException:
Didn't find class "com.apps.mobileassistant.MainActivity"
on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],
nativeLibraryDirectories=[/data/app-lib/com.apps.mobileassistant-2
You either have made some mistake on setting up your project and required library, or simply has some class missing, or has not informed in your code the respective class through import and the class name.

android manifest being choosey

Ok, so I've got my Android application and it wont boot with a "unable to instantiate activity ComponentInfo{}" error, basically theres something wrong in my manifest file that won't let the application launch the first activity. I made a new but essentially duplicated project (manually copying across the Java+XML code for Main, second + third 'tester' activities, and of course Strings). I left the manifest of the new project as it is but added the activity lines for the tester. I wanted everything as stock basically so nothing could go wrong, and nothing did, the application loaded on emulator and my phone alright.
So I copy the new manifest to my old project in an effort to 'default' it, and I copy and pasted the tester activity code that was already there and worked, for the other 3 activity's. Suddenly it doesn't want to work. Everything is there, but what's the problem? (note the icon drawable is changed but that's nothing to do with it). All the activity names match up to package names and whatnot. Could this be a bug? I honestly cannot find anything wrong.
Duplicate (+ working) code
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/logo3"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.ollygrov.bakerspride.Main"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.ollygrov.bakerspride.Cal"
android:label="#string/title_activity_cal" >
</activity>
<activity
android:name="com.ollygrov.bakerspride.Breads"
android:label="#string/title_activity_breads" >
</activity>
</application>
Old (+ not working) code
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.ollygrov.bakerspride.Main"
android:label="#string/app_title" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.ollygrov.bakerspride.Cal"
android:label="#string/title_activity_cal" >
</activity>
<activity
android:name="com.ollygrov.bakerspride.Breads"
android:label="#string/title_activity_breads" >
</activity>
<activity
android:name="com.ollygrov.bakerspride.Gal"
android:label="#string/title_activity_gal" >
</activity>
<activity
android:name="com.ollygrov.bakerspride.Tut"
android:label="#string/title_activity_tut" >
</activity>
<activity
android:name="com.ollygrov.bakerspride.Rec"
android:label="#string/title_activity_rec" >
</activity>
</application>
EDIT: I just copied and pasted the codes into the search bar on Chrome (changing the droid:icon and droid:label to fit) and they are exactly the same!! What?! Am I not allowed to have 6 activities or something?
Errors:
09-04 11:33:04.895: E/AndroidRuntime(717): FATAL EXCEPTION: main
09-04 11:33:04.895: E/AndroidRuntime(717): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.ollygrov.bakerspride/com.ollygrov.bakerspride.Main}: java.lang.NullPointerException
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread.access$600(ActivityThread.java:130)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.os.Handler.dispatchMessage(Handler.java:99)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.os.Looper.loop(Looper.java:137)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread.main(ActivityThread.java:4745)
09-04 11:33:04.895: E/AndroidRuntime(717): at java.lang.reflect.Method.invokeNative(Native Method)
09-04 11:33:04.895: E/AndroidRuntime(717): at java.lang.reflect.Method.invoke(Method.java:511)
09-04 11:33:04.895: E/AndroidRuntime(717): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
09-04 11:33:04.895: E/AndroidRuntime(717): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
09-04 11:33:04.895: E/AndroidRuntime(717): at dalvik.system.NativeStart.main(Native Method)
09-04 11:33:04.895: E/AndroidRuntime(717): Caused by: java.lang.NullPointerException
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.Activity.findViewById(Activity.java:1825)
09-04 11:33:04.895: E/AndroidRuntime(717): at com.ollygrov.bakerspride.Main.<init>(Main.java:19)
09-04 11:33:04.895: E/AndroidRuntime(717): at java.lang.Class.newInstanceImpl(Native Method)
09-04 11:33:04.895: E/AndroidRuntime(717): at java.lang.Class.newInstance(Class.java:1319)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
09-04 11:33:04.895: E/AndroidRuntime(717): ... 11 more
09-04 11:34:58.665: E/Trace(765): error opening trace file: No such file or directory (2)
09-04 11:34:59.095: D/AndroidRuntime(765): Shutting down VM
09-04 11:34:59.095: W/dalvikvm(765): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
09-04 11:34:59.114: E/AndroidRuntime(765): FATAL EXCEPTION: main
09-04 11:34:59.114: E/AndroidRuntime(765): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.ollygrov.bakerspride/com.ollygrov.bakerspride.Main}: java.lang.NullPointerException
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread.access$600(ActivityThread.java:130)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.os.Handler.dispatchMessage(Handler.java:99)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.os.Looper.loop(Looper.java:137)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread.main(ActivityThread.java:4745)
09-04 11:34:59.114: E/AndroidRuntime(765): at java.lang.reflect.Method.invokeNative(Native Method)
09-04 11:34:59.114: E/AndroidRuntime(765): at java.lang.reflect.Method.invoke(Method.java:511)
09-04 11:34:59.114: E/AndroidRuntime(765): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
09-04 11:34:59.114: E/AndroidRuntime(765): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
09-04 11:34:59.114: E/AndroidRuntime(765): at dalvik.system.NativeStart.main(Native Method)
09-04 11:34:59.114: E/AndroidRuntime(765): Caused by: java.lang.NullPointerException
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.Activity.findViewById(Activity.java:1825)
09-04 11:34:59.114: E/AndroidRuntime(765): at com.ollygrov.bakerspride.Main.<init>(Main.java:19)
09-04 11:34:59.114: E/AndroidRuntime(765): at java.lang.Class.newInstanceImpl(Native Method)
09-04 11:34:59.114: E/AndroidRuntime(765): at java.lang.Class.newInstance(Class.java:1319)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
09-04 11:34:59.114: E/AndroidRuntime(765): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)

The problem is your Main Constructor:
09-04 11:33:04.895: E/AndroidRuntime(717): Caused by: java.lang.NullPointerException
09-04 11:33:04.895: E/AndroidRuntime(717): at android.app.Activity.findViewById(Activity.java:1825)
09-04 11:33:04.895: E/AndroidRuntime(717): at com.ollygrov.bakerspride.Main.<init>(Main.java:19)
In line 19 of Main.java you are trying to call findViewById() which will obviously not work. It is way to early to call such code in the constructor.
My best guess is, that you need to move EVERYTHING from the cronstructor to onCreate() of the Activity.
Normally you don't need a custom constructor in Activities or Fragments.

Android - exception launching project on start after copying a lot of code over from another project

am getting this exception:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{business.premium/business.premium.Problemio}:
java.lang.ClassNotFoundException: business.premium.Problemio
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1880)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: business.premium.Problemio
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871)
... 11 more
java.lang.ClassNotFoundException: business.premium.Problemio
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
it says that class is not there, but it IS there. I tried to configure things in my project's build path, but not too sure what to tweak there.
And here is how I start my Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="business.premium"
android:versionCode="1"
android:versionName="1.0" >
<supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true"/>
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="15"/>
<uses-permission android:name="android.permission.INTERNET" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/CustomTheme"
android:name="MyApplication"
android:debuggable="true">
<activity
android:name=".Problemio"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Any thoughts on how to solve this, or what to look into? Thanks!

Its because you specified the "android:name" attribute in the application node in the manifest file.
Do not use the android:name attribute!
It, misleadingly, does not have anything to do with the name of your app and is actually the name of an extra class to load before loading your application. That's why you are getting the ClassNotFoundException.
Remove it and it should work:
<application
android:icon="#drawable/icon"
android:label="#string/app_name"
android:description="#string/help_text" >
This answer is taken from: java.lang.ClassNotFoundException on working app

Android ClassNotFoundException on published app

I have an application thats been published awhile on Google play, I have been fixing reported bugs as they come in but recently this log below came in and I don't know what to make of it:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mammothtooth.flightinfo/com.mammothtooth.flightinfo.ui.SplashActivity}: java.lang.ClassNotFoundException: com.mammothtooth.flightinfo.ui.SplashActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/mnt/asec/com.mammothtooth.flightinfo-1/pkg.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851)
at android.app.ActivityThread.access$1500(ActivityThread.java:132)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:150)
at android.app.ActivityThread.main(ActivityThread.java:4277)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.mammothtooth.flightinfo.ui.SplashActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/mnt/asec/com.mammothtooth.flightinfo-1/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735)
Does anyone know anything about this type of error log? My SplashScreenActivity is there and its defined as the entry point of the application in the manifest as follows:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/Theme.Sherlock" >
<uses-library android:name="com.google.android.maps" />
<activity
android:label="#string/app_name"
android:name=".ui.SplashActivity"
android:theme="#android:style/Theme.NoTitleBar"
android:configChanges="keyboard|keyboardHidden|orientation"
android:screenOrientation="portrait">
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Would the placing of the uses-library be an issue in the manifest?
I can't reproduce this issue on any of my android devices so any help is greatly appreciated in locating what might be the cause of this issue.