引起：java.lang.ClassNotFoundException：路径上没有找到类“android.support.v4.animation.AnimatorCompatHelper”：DexPathList [[zip文件]

Question

I am getting the below error when trying to delete the element in a recycler view in android.

Caused by: java.lang.ClassNotFoundException: Didn't find class 
          "android.support.v4.animation.AnimatorCompatHelper" on path: DexPathList[[zip file

Although the element is getting deleted but the app crashes out.Let me know if I need to change something in apps gradle file or build gradle file. Please help me out.

Full Exception Trace: 06-11 12:42:07.867 29844-29844/com.application.aayush.geeta E/AndroidRuntime: FATAL EXCEPTION: main Process: com.application.aayush.geeta, PID: 29844 java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/animation/AnimatorCompatHelper; at android.support.v7.widget.DefaultItemAnimator.resetAnimation(DefaultItemAnimator.java:515) at android.support.v7.widget.DefaultItemAnimator.animateRemove(DefaultItemAnimator.java:189) at android.support.v7.widget.SimpleItemAnimator.animateDisappearance(SimpleItemAnimator.java:95) at android.support.v7.widget.RecyclerView.animateDisappearance(RecyclerView.java:3537) at android.support.v7.widget.RecyclerView$4.processDisappeared(RecyclerView.java:456) at android.support.v7.widget.ViewInfoStore.process(ViewInfoStore.java:246) at android.support.v7.widget.RecyclerView.dispatchLayoutStep3(RecyclerView.java:3385) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3135) at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3568) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079) at android.view.View.layout(View.java:17535) at android.vie w.ViewGroup.layout(ViewGroup.java:5616) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131) at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42) at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1364) at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:846) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1172) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.jav a:261) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585) at android.widget.LinearLayout.onLayout(LinearLayout.java:1494) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585) at android.widget.LinearLayout.onLayout(LinearLayout.java:1494) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:3 23) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at com.android.internal.policy.DecorView.onLayout(DecorView.java:724) at android.view.View.layout(View.java:17535) at android.view.ViewGroup.layout(ViewGroup.java:5616) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2354) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2081) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1258) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6348) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871) at android.view.Choreographer.doCallbacks(Choreographer.java:683) at android.view.Choreographer.doFrame(Choreographer.java:619) 06-11 12:42:07.870 29844-29844/com.application.aayush.geeta E/AndroidRuntime: at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.L ooper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6123) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757) Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.animation.AnimatorCompatHelper" on path: DexPathList[[zip file "/data/app/com.application.aayush.geeta-1/base.apk"],nativeLibraryDirectories=[/data/app/com.application.aayush.geeta-1/lib/arm, /system/lib, /vendor/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:380) at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

Also when I am trying to debug I am getting the below Error:

Error:Execution failed for task ':app:lint'.
Lint found errors in the project; aborting build.
Fix the issues identified by lint, or add the following to your build script 
to proceed with errors:
...
android {
    lintOptions {
       abortOnError false
   }
}
...

Answer 1

use this library, it solved my problem

compile 'com.github.h6ah4i:android-advancedrecyclerview:develop-SNAPSHOT'

Answer 2

The best solve way is copy missed class to your project.like this: