Question

将Android Studio更新到2.3版之后。每次我刷我的ViewPager时，我都会收到此错误并且应用程序崩溃：

03-23 17:19:19.437 28523-28523/? E/AndroidRuntime: FATAL EXCEPTION: main
   Process: com.irokotv.plus, PID: 28523
   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.animateAdd(DefaultItemAnimator.java:218)
       at android.support.v7.widget.SimpleItemAnimator.animateAppearance(SimpleItemAnimator.java:114)
       at android.support.v7.widget.RecyclerView.animateAppearance(RecyclerView.java:3528)
       at android.support.v7.widget.RecyclerView$4.processAppeared(RecyclerView.java:461)
       at android.support.v7.widget.ViewInfoStore.process(ViewInfoStore.java:249)
       at android.support.v7.widget.RecyclerView.dispatchLayoutStep3(RecyclerView.java:3385)
       at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3135)
       at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3568)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1766)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131)
       at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
       at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1364)
       at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:846)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       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:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       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:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
       at com.android.internal.policy.DecorView.onLayout(DecorView.java:818)
       at android.view.View.layout(View.java:18793)
       at android.view.ViewGroup.layout(ViewGroup.java:5952)
       at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2615)
       at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2331)
       at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1490)
       at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7027)
       at android.view.Choreographer$CallbackRecord.run(Choreographer.java:927)
       at android.view.Choreographer.doCallbacks(Choreographer.java:702)
       at android.view.Choreographer.doFrame(Choreographer.java:638)
       at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:913)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6688)
       at java.lang.reflect.Method.invoke(Native Method)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468)

应用程序用于在更新之前正常运行。我已经清理了这个项目。使缓存无效并运行gradle clean。不知道我还能做什么/尝试。我的同事可以构建项目，它可以毫无问题地工作。

Answer 1

将此代码写入build.gradle文件夹

中的app文件中

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == 'com.android.support') {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion '25.3.0'
            }
        }
    }

参考stackoverflow answer

我希望这会对你有所帮助，编码很快

Answer 2

我使用的是版本26.0.1（在Android Studio 3.0 beta 2上）支持库有47版本，我遇到了同样的问题。对我有用的是从所有gradle文件中删除/注释这一行：

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == 'com.android.support') {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion '25.3.0'
            }
        }
    }
}

然后从＆＃34; Er Pathak Harshal＆＃34;添加以下代码：在build.gradle文件中注释（Module：app and Module：Library）的底部：

Scale <- c(3.913934,3.996000,4.012884,3.925220,3.856707,3.849608,
           3.820578,3.943110,3.945975,3.842338,3.891791,3.933083,3.993944,3.907775,
           3.847120,3.853263,3.917156,4.028956,3.878879,3.753880,3.969074,3.818923,
           3.855913,3.993075,3.985828,3.914240,3.854336,3.620460,3.848180,3.843788,
           3.830617,3.841890,3.879547,3.904059)  ##Length 34
bins <- seq(0.5, 25, by = 0.5) # length 50
shape <- 2
Wind_prob <- matrix(NA_real_, length(bins), length(Scale))
for (j in seq_along(Scale)) {
  for (i in seq_along(bins)) {
    Wind_prob[i, j]<-(0.5*(exp(-1*(bins[i]/shape)^shape))*
                        (shape/as.numeric(Scale[j]))*
                        ((bins[i]/as.numeric(Scale[j]))^(shape-1)))
  }
}

请注意，如果您有超过1个build.gradle文件，例如（模块：库和模块：yourapp），您需要在两个文件中添加该代码以使其正常工作。

Answer 3

您可以将支持v7 lib版本更改为26.0.0-alpha1 shuch：

curl 'http://<Your Address>/<Web Service End Address>?<Variable1=value1&Varuable2=value2'

我希望这会对你有所帮助

Answer 4

我能够弄清楚问题是什么。 Android工作室将Android支持存储库＆＃34;（位于sdk管理器中）更新到版本46，其中包含一堆针对Android O的Alpha支持库。我又回到了版本25，问题得到了解决。显然，Android Studio 2.3依赖于Alpha支持库，导致依赖项不匹配，从而导致应用程序崩溃。

Answer 5

只需生成一个“APK”而不是即时运行，它就能完美运行。

Answer 6

使用最新的支持库。（最新的稳定版本对我有用 - 即目前从27.1.1或更高版本升级到28.0.0修复它。）

Answer 7

我修复了Gradle app中的错误更新版本

implementation 'com.android.support:design:27.0.2'
implementation 'com.android.support:support-v4:27.0.2'

要

implementation 'com.android.support:design:27.1.1’
implementation 'com.android.support:support-v4:27.1.1’

Answer 8

我也有同样的问题。狩猎一整天后一无所获。然后在早上以新鲜的心态，我意识到我的一个自定义库使用java 8功能，我的app模块gradle文件无法启用它。

所以我只是在build.gradle(Modeule:app)文件中添加了以下行以使其正常工作：

compileOptions {
        targetCompatibility 1.8
        sourceCompatibility 1.8
}

我希望它也有助于其他人。

Answer 9

我在整合aviary sdk时遇到了同样的问题，然后解决了降级问题，如下所示。。

应用与compile 'com.android.support:appcompat-v7:25.4.0'的兼容性
将sdk版本定位到targetSdkVersion 25
将sdk版本编译为compileSdkVersion 25

Answer 10

确保在您的build.gradle文件中，所有实现都具有相同的版本。

implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:design:26.1.0'
implementation 'com.android.support:cardview-v7:26.1.0'

java.lang.NoClassDefFoundError：解析失败：Landroid / support / v4 / animation / AnimatorCompatHelper

10 个答案: