java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{org.wangchenlong.contentproviderdemo/org.wangchenlong.contentproviderdemo.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "org.wangchenlong.contentproviderdemo.MainActivity" on path: DexPathList[[zip file "/data/app/org.wangchenlong.contentproviderdemo-2.apk"],nativeLibraryDirectories=[/data/app-lib/org.wangchenlong.contentproviderdemo-2, /vendor/lib, /system/lib]]

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    Didn't find class "org.wangchenlong.contentproviderdemo.MainActivity" on path: DexPathList[[zip file "/data/app/org.wangchenlong.contentproviderdemo-2.apk"],nativeLibraryDirectories=[/data/app-lib/org.wangchenlong.contentproviderdemo-2, /vendor/lib, /system/lib]]

    at dalvik.system.BaseDexClassLoader.findClass()
  2. Android Platform
    BaseDexClassLoader.findClass
    1. dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    1 frame
  3. Java RT
    ClassLoader.loadClass
    1. java.lang.ClassLoader.loadClass(ClassLoader.java:497)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:457)
    2 frames
  4. Android Platform
    ActivityThread.performLaunchActivity
    1. android.app.Instrumentation.newActivity(Instrumentation.java:1061)
    2. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2116)
    2 frames