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

  1. android-support-v7-appcompact.jar
  2. 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{}: java.lang.ClassNotFoundException: in loader dalvik.system.PathClassLoader[/data/app/] at at at$2300( at$H.handleMessage( at android.os.Handler.dispatchMessage( at android.os.Looper.loop( at at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke( at$ at at dalvik.system.NativeStart.main(Native Method)

Caused by: java.lang.ClassNotFoundException: in loader dalvik.system.PathClassLoader[/data/app/]
    at dalvik.system.PathClassLoader.findClass(
    at java.lang.ClassLoader.loadClass(
    at java.lang.ClassLoader.loadClass(

here is the menifest file content

<manifest xmlns:android=""

    <uses-sdk android:minSdkVersion="7"  />

        <activity android:name="NavMainActivity">
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>



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.

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