java.lang.ClassNotFoundException in dalvik.system.PathClassLoader.findClass

Question

i need help. Im trying to start an app with Google Maps V2 integrated. On my Samsung Galaxy S2 with JellyBean it is working and on my fathers' S3 as well. But on a HTC Desire and some others it doesn't. I couldn't find out what I'am doing wrong.

Logcat:

   java.lang.RuntimeException: Unable to start activity ComponentInfo{}: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at android.app.ActivityThread.access$2300(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
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:876)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
at android.app.Activity.setContentView(Activity.java:1650)
at GoogleMaps.onCreate(Unknown Source)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
... 11 more
Caused by: java.lang.ClassNotFoundException: android.view.fragment in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/
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.view.LayoutInflater.createView(LayoutInflater.java:466)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:544)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)

The XML-File:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<LinearLayout
    android:id="@+id/scrollView1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="0.34" >

   <fragment // This is line 15
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.MapFragment"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center" />
</LinearLayout>

thats the problem you have to use SupportMapFragment, in place of MapFragment ! — Rachit Mishra, Sep 01 '13 at 20:01
brow now i have another problem. I need an alternative to this line of code: map = ((MapFragment)getFragmentManager().findFragmentById(R.id.map)).getMap(); because FragmentManager was introduced in API 11. — Fatih Gee, Sep 01 '13 at 21:34
Found it out by myself for the people who face the same problem: http://mobile.tutsplus.com/tutorials/android/android-compatibility-working-with-fragments/ http://stackoverflow.com/questions/16004137/supportmapfragment-cannot-cast-from-fragment-to-mapfragment — Fatih Gee, Sep 01 '13 at 21:49

score 4 · Accepted Answer · answered Sep 01 '13 at 11:00

4

You should use SupportMapFragment.

<fragment
class="com.google.android.gms.maps.SupportMapFragment"
...

Your class must extend FragmentActivity.

Also make sure you imported the below

import android.support.v4.app.FragmentActivity;  
import com.google.android.gms.maps.SupportMapFragment;

answered Sep 01 '13 at 11:00

user2339071

4,254
1
27
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1

Thanks man I wasted so much time on this and this couple of code made it work again thank you (Y) – Fatih Gee Sep 01 '13 at 20:27

score 0 · Answer 2 · answered Sep 01 '13 at 11:36

0

Google Maps V2 supports Android version 2.2+

Google Maps V2 require installed on the your device Google Maps and Google Play Service. If your device does not contains this application your app does not work.

HTC desire by default working under Android version 2.1

answered Sep 01 '13 at 11:36

Artem

691
2
5
22

it just requires play services maps are'nt neccesary. – Rachit Mishra Sep 01 '13 at 20:07

java.lang.ClassNotFoundException in dalvik.system.PathClassLoader.findClass

2 Answers2