java.lang.NoClassDefFoundError:失败的解决方案:Lorg/jacoco/agent/rt/internal_14f7ee5 /离线

Question

在更新到Gradle Build Tools 2.1.3和Gradle 2.14.1之后,我在Android项目中看到以下错误.它在我运行应用程序时立即发生.我该如何解决？

java.lang.NoClassDefFoundError: Failed resolution of: Lorg/jacoco/agent/rt/internal_14f7ee5/Offline;
at com.ourapp.next.conversation.SomeList.SomeListViewModel.$jacocoInit(SomeListViewModel.java)
at com.ourapp.next.conversation.SomeList.SomeListViewModel.(SomeListViewModel.java)
at com.ourapp.next.conversation.SomeList.SomeListAdapterTest.(SomeListAdapterTest.java:26)
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:59)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:262)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1853)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.jacoco.agent.rt.internal_14f7ee5.Offline" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.ourapp.next.debug.test-1/base.apk", zip file "/data/app/com.ourapp.next.debug-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
... 30 more
Suppressed: java.lang.ClassNotFoundException: org.jacoco.agent.rt.internal_14f7ee5.Offline
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 31 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

Answer 1

提交了一个错误报告:https://code.google.com/p/android/issues/detail？id = 220640

这看起来是jacoco版本的问题.你需要更新你的jococoversion 0.7.6.201602180812.

引用该问题:

jacoco插件版本从0.7.4.201502262128升至0.7.6.201602180812,介于2.1.2至2.1.3之间,这可能是导致此问题的原因.

在2.2中它是0.7.5.201505241946.

看起来一个可能的错误可能与Google Play服务有关.暂时有临时解决方法.

选项1:注释掉testCoverageEnabled true.

buildTypes {
    debug {
        // testCoverageEnabled true
    }
}

选项2:使用Instant Run似乎也解决了这个问题.