Develop Reference

Ionic Build error with Android Studio.

I have made functional changes in my ionic app and tested in browser by ionic serve. Everything went fine and proceeded for ionic build. So it returned me below error.
I:\myprojects\fizion>ionic package info 30
id │ 30
status │ FAILED
platform │ android
mode │ debug
started │ Jul 30th, 2017 10:32:28
output:
ANDROID_HOME=/opt/android-sdk
JAVA_HOME=/usr/lib/jvm/java-8-oracle
Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK.
Looked here: /opt/android-sdk/tools/templates/gradle/wrapper
I am not sure whose Android SDK it is suggesting to upgrade. Mine or ionic cloud's ?
Ok, I tried to upgrade my android studio SDK and then other problem started. Then I have issued below command to propogate the new changes to the android.
cordova prepare android
I have built the .apk file and launched in phone. It crashed, so tried in emulator and got the below error.
--------- beginning of crash
07-30 12:18:53.350 3040-3040/com.ionicframework.fizion233539 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ionicframework.fizion233539, PID: 3040
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.ionicframework.fizion233539/com.ionicframework.fizion233539.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.ionicframework.fizion233539.MainActivity" on path: DexPathList[[zip file "/data/app/com.ionicframework.fizion233539-1/base.apk"],nativeLibraryDirectories=[/data/app/com.ionicframework.fizion233539-1/lib/x86_64, /vendor/lib64, /system/lib64]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.ionicframework.fizion233539.MainActivity" on path: DexPathList[[zip file "/data/app/com.ionicframework.fizion233539-1/base.apk"],nativeLibraryDirectories=[/data/app/com.ionicframework.fizion233539-1/lib/x86_64, /vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Suppressed: java.lang.NoClassDefFoundError: com.ionicframework.fizion233539.MainActivity
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:226)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
at dalvik.system.DexPathList.findClass(DexPathList.java:338)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
... 13 more
Suppressed: java.lang.ClassNotFoundException: com.ionicframework.fizion233539.MainActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
07-30 12:18:53.352 1584-1596/system_process W/ActivityManager: Force finishing activity com.ionicframework.fizion233539/.MainActivity
my manifest file:
<?xml version='1.0' encoding='utf-8'?>
<manifest android:hardwareAccelerated="true" android:versionCode="1" android:versionName="0.0.1" package="com.ionicframework.fizion233539" xmlns:android="http://schemas.android.com/apk/res/android">
<supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application android:hardwareAccelerated="true" android:icon="#drawable/icon" android:label="#string/app_name" android:supportsRtl="true">
<activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale" android:label="#string/activity_name" android:launchMode="singleTop" android:name="MainActivity" android:theme="#android:style/Theme.DeviceDefault.NoActionBar" android:windowSoftInputMode="adjustResize">
<intent-filter android:label="#string/launcher_name">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter android:autoVerify="true">
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:host="https://hs7pj.app.goo.gl/" android:scheme="https" />
</intent-filter>
<intent-filter android:autoVerify="true">
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:host="fizion-f4286.firebaseapp.com" android:path="/__/auth/callback" android:scheme="https" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="23" />
<uses-feature android:name="android.hardware.location.gps" />
</manifest>
I have been going through many SO posts and tried many but nothing worked out.
I am happy to share my android studio screenshots for configurations. I am sure this is due to upgrade of android studio but where to crack it.
Could someone guide me I am blocked.

My android studio was showing me warning mentioned in the below post. So I ignored it. But that is the culprit and fixed the issue.
Android, IntelliJ Idea, changing module type

AltBeacon issue after adding Parse server push notification

My application was working ok, but after i added the push notifications from parse server, i started getting an error when the app is launched (see message below), while the app open and work ok, when i close the app the same is not doing the background search and notification.
09-30 17:22:12.006 10338-10349/br.com.inconnet.inbeacon E/Parcel: Class not found when unmarshalling: org.altbeacon.beacon.service.StartRMData
java.lang.ClassNotFoundException: org.altbeacon.beacon.service.StartRMData
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:324)
at android.os.Parcel.readParcelableCreator(Parcel.java:2404)
at android.os.Parcel.readParcelable(Parcel.java:2358)
at android.os.Message.readFromParcel(Message.java:571)
at android.os.Message.-wrap0(Message.java)
at android.os.Message$1.createFromParcel(Message.java:527)
at android.os.Message$1.createFromParcel(Message.java:525)
at android.os.IMessenger$Stub.onTransact(IMessenger.java:51)
at android.os.Binder.execTransact(Binder.java:453)
Caused by: java.lang.ClassNotFoundException: org.altbeacon.beacon.service.StartRMData
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at java.lang.Class.classForName(Native Method) 
at java.lang.Class.forName(Class.java:324) 
at android.os.Parcel.readParcelableCreator(Parcel.java:2404) 
at android.os.Parcel.readParcelable(Parcel.java:2358) 
at android.os.Message.readFromParcel(Message.java:571) 
at android.os.Message.-wrap0(Message.java) 
at android.os.Message$1.createFromParcel(Message.java:527) 
at android.os.Message$1.createFromParcel(Message.java:525) 
at android.os.IMessenger$Stub.onTransact(IMessenger.java:51) 
at android.os.Binder.execTransact(Binder.java:453) 
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
if i remove the following information from my AndroidManifest.xml, the app works ok again.
<meta-data android:name="com.parse.push.gcm_sender_id"
android:value="id:xxxxxx" />
<service android:name="com.parse.PushService" />
<receiver android:name="com.parse.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="br.com.inconnet.inbeacon" />
</intent-filter>
</receiver>
<receiver android:name="com.parse.ParsePushBroadcastReceiver" android:exported="false">
<intent-filter>
<action android:name="com.parse.push.intent.RECEIVE" />
<action android:name="com.parse.push.intent.OPEN" />
<action android:name="com.parse.push.intent.DELETE" />
</intent-filter>
</receiver>
How can i make both work thogeter?

A similar problem has been reported by folks who are bundling their apps with certain other services and the Android Beacon Library. There is no known fix or even a fully understood cause. You can read more about the issue here:
https://github.com/AltBeacon/android-beacon-library/issues/306
One theory is that bundling some services with your app somehow forces other services in the app to run in a separate process, something the Android Beacon Library does not support.
If you have proguard settings enabled, you may want to try disabling them to see if this makes the problem go away.

Permission Denial when onMessageReceived should be called

I'm following this tutorial and got a WearableListenerService. I just implemented the onMessageReceived method and didn't change anything else.
The entry for the service looks like this:
<service android:name=".WearableRemoteCommandListener"
android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="com.google.android.gms.wearable.BIND_LISTENER"></action>
</intent-filter>
</service>
The application element contains this meta-data element:
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
But when I send a message to the wearable I get this security exception:
06-08 21:15:41.337 579-842/? W/ActivityManager﹕ Permission Denial: Accessing service ComponentInfo{net.bplaced.schlingel.wearabletest1/net.bplaced.schlingel.anmosela.WearableRemoteCommandListener} from pid=822, uid=10009 requires android.permission.BIND_NOTIFICATION_LISTENER_SERVICE
06-08 21:15:41.437 822-940/? W/WearableService﹕ ensureBindStarted: Permission denied connecting to net.bplaced.schlingel.anmosela.WearableRemoteCommandListener
java.lang.SecurityException: Not allowed to bind to service Intent { act=com.google.android.gms.wearable.BIND_LISTENER cmp=net.bplaced.schlingel.wearabletest1/net.bplaced.schlingel.anmosela.WearableRemoteCommandListener }
at android.app.ContextImpl.bindServiceCommon(ContextImpl.java:1793)
at android.app.ContextImpl.bindService(ContextImpl.java:1757)
at android.content.ContextWrapper.bindService(ContextWrapper.java:539)
at com.google.android.gms.wearable.service.t.b(SourceFile:1157)
at com.google.android.gms.wearable.service.t.a(SourceFile:1099)
at com.google.android.gms.wearable.service.t.handleMessage(SourceFile:1077)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.os.HandlerThread.run(HandlerThread.java:61)
I tried to add the exported and enabled attribute, restarted the wearable but the exception happens again. Is there a permission missing? What is wrong with my setup?

get rid of this line
android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE"
from the documentation
Must be required by an NotificationListenerService, to ensure that
only the system can bind to it.

ClassNotFoundException in dalvik.system.PathClassLoader

i am running one android application in which i am using ActionBar but from supported library for android 2.2
i have added two external jar file as a support libraries
android-support-v7-appcompact.jar
android-support-v13.jar
but when i run the sample in my device i getting following runtime error
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.example.android.navigationdrawerexample/com.example.android.navigationdrawerexample.NavMainActivity}:
java.lang.ClassNotFoundException:
com.example.android.navigationdrawerexample.NavMainActivity in loader
dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2703)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2797)
at android.app.ActivityThread.access$2300(ActivityThread.java:135)
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2132)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:143) at
android.app.ActivityThread.main(ActivityThread.java:4914) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:521) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at
dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.example.android.navigationdrawerexample.NavMainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
at android.app.Instrumentation.newActivity(Instrumentation.java:1033)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2695)
here is the menifest file content
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.navigationdrawerexample"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application
android:label="#string/app_name"
android:icon="#drawable/ic_launcher"
>
<activity android:name="NavMainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
order of jar files

You should not only look at errors but also at warnings (orange text color in eclipse logcat view). Dalvik class loading are often preceded by some interesting informations about why a class can't be loaded by the Dalvik, something like a super class not existing.

Explanation for random ClassNotFoundExceptions?

I have an app with ~11k active installs for which I sometimes receive ClassNotFoundExceptions that I can't explain. They look like this:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{name.of.my.MainActivityClass}: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/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:4293)
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:849)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/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)
... 11 more
I received some of these exceptions from users that updated my app (not only for the most recent version), so I think it is not a problem that is specific to some phones as the app worked for them before.
I got these exception reports for my main activity class, a receiver class and a BackupAgent class.
All of those classes are always instantiated directly from Android. My Manifest file looks like this:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="name.of.my"
android:versionCode="20"
android:versionName="1.10.2"
android:installLocation="auto">
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="8" />
<application android:icon="#drawable/icon" android:label="#string/app_name" android:backupAgent="name.of.my.OwnBackupAgent">
<activity android:name="name.of.my.MainActivityClass"
android:label="#string/app_name"
android:theme="#style/MyTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="name.of.my.OwnReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.media.RINGER_MODE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>
After searching the net for some hours, the most likely explanations I found are:
it might be related to moving the app to SD card while there are still some services running (but the android dev guide says that all services are canceled in this case, and it doesn't explain why my main activity class suddenly can't be found anymore)
the .apk might be corrupted after updating via the android market. Could this be true? If yes, what can I do against it - if not, what else might be the problem?