Android项目中的ClassNotFoundException仅在我的PC上

最近，当我用Windows 8.1在家里完成自己的工作时，发现项目无法正常工作 – 编译，在模拟器上运行，并在某个特定点崩溃（100％可重现在我的电脑上）。

但是，同样的版本库修订版可以在工作的Mac上以及同事的Windows 10机器上运行。

每个提到的环境都使用Android Studio 2.3.1，gradle 3.3和Kotlin 1.1.1，并在API 25 x86_64映像上运行应用程序。

该项目正在使用multidex 1.0.1库。

由于以下例外，发生崩溃： 

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.project.app, PID: 2533 java.lang.NoClassDefFoundError: Failed resolution of: Lcom/project/package/SomeActivityKt$sam$Action1$22181393; at com.project.package.SomeActivity.getDataFor(SomeActivity.kt:164) at com.project.package.SomeActivity.getData(SomeActivity.kt:147) at com.project.package.SomeActivity.onResume(SomeActivity.kt:142) at android.app.Instrumentatcomn.callActivityOnResume(Instrumentatcomn.java:1269) at android.app.Activity.performResume(Activity.java:6783) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3406) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3469) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2732) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6119) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.project.package.SomeActivityKt$sam$Action1$22181393" on path: DexPathList[[zip file "/data/app/com.project.app-1/base.apk", zip file "/data/app/com.project.app-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.project.app-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.project.app-1/lib/x86_64, /data/app/com.project.app-1/base.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_dependencies_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_0_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_1_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_2_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_3_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_4_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_5_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_6_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_7_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_8_apk.apk!/lib/x86_64, /data/app/com.project.app-1/split_lib_slice_9_apk.apk!/lib/x86_64, /system/lib64, /vendor/lib64]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:380) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at com.project.package.SomeActivity.getDataFor(SomeActivity.kt:164) at com.project.package.SomeActivity.getData(SomeActivity.kt:147) at com.project.package.SomeActivity.onResume(SomeActivity.kt:142) at android.app.Instrumentatcomn.callActivityOnResume(Instrumentatcomn.java:1269) at android.app.Activity.performResume(Activity.java:6783) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3406) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3469) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2732) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6119)

BaseActivity.kt 

 abstract class BaseActivity : RxAppCompatActivity(), HasErrorHandler (...)

SomeActivity.kt – 这个崩溃 

 class SomeActivity : BaseActivity(), HasFullWindowProgress (...) { (...) private fun getDataFor(id: String) { apiClient.somethingList(id) .map { response -> response.toSomethingList() } .lifecycle(this) .showProgress(this) .observeOnMainThread() // <== line 164 .subscribe({ LOG.info("Something list fetched ${it.size}") adapter.setItems(it) }, defaultOnError("Fetching something list failed")) } }

AnotherActivity.kt – 使用与SomeActivity相同的功能， 不会崩溃 

 class AnotherActivity : BaseActivity(), HasFullWindowProgress (...) { (...) private fun getData() { somethingElse.user?.id?.let { id -> apiClient.somethingElseList() .map { response -> response.toAnotherList(id) } .lifecycle(this) .showProgress(this) .observeOnMainThread() .subscribe({ onNewSomethingElseList(id, it) }, defaultOnError("Fetching somethingElseList for somethingElse failed")) } } }

ActivityErrorHandlingExtensions.kt 

 fun <T> T.defaultOnError(message: String, vararg args: Any?): (Throwable) -> Unit where T : HasErrorHandler, T : Activity { val targetClass = javaClass val activity = this return { err -> val messageFormats = (args.toList() + err).toTypedArray() LoggerFactory.getLogger(targetClass).error(message, *messageFormats) errorHandler.default(err, activity) } }

ObservableExtensions.kt 

 fun <T> Observable<T>.lifecycle(activity: RxAppCompatActivity) : Observable<T> { return compose(activity.bindToLifecycle<T>()) } fun <T> Observable<T>.observeOnMainThread() : Observable<T> { return observeOn(AndroidSchedulers.mainThread()) }

Progress.kt 

 fun <T> Observable<T>.showProgress(hasProgress: HasFullWindowProgress): Observable<T> { return compose { it.doOnSubscribe { MAIN_THREAD_WORKER.schedule { hasProgress.fullWindowProgress.visibility = View.VISIBLE } }.doAfterTerminate { MAIN_THREAD_WORKER.schedule { hasProgress.fullWindowProgress.visibility = View.GONE } } } }

所有这些代码都在这个项目中已经有一两个多月了，两周前我的个人电脑正在运行。

我已经试过了：

  • ./gradlew cleanBuildCache

  • 删除了$HOME/.gradle/caches

  • 删除了$HOME/.android/build-cache

  • 删除了$HOME/.AndroidStudio2.3/system/caches

  • 删除生成和app/build目录

  • 在项目的根目录中删除了.gradle dir

  • Android Studio使缓存无效并重新启动

  • 手动从模拟器中卸载应用程序并重新安装

  • 重新安装Android Studio 2.3.1

  • 将Android Studio降级到2.3（这是我在2周前使用的版本，我知道它工作的那么）

任何想法这里有什么不对？

getDataFor方法的Kotlin字节码： 

  private final getDataFor(Ljava/lang/String;)V L0 LINENUMBER 160 L0 L1 LINENUMBER 165 L1 L2 LINENUMBER 160 L2 L3 LINENUMBER 164 L3 L4 LINENUMBER 160 L4 L5 LINENUMBER 163 L5 L6 LINENUMBER 160 L6 L7 LINENUMBER 162 L7 L8 LINENUMBER 160 L8 L9 LINENUMBER 161 L9 L10 LINENUMBER 160 L10 ALOAD 0 GETFIELD com/project/package/SomeActivity.apiClient : Lcom/project/network/ApiClient; DUP IFNONNULL L11 LDC "apiClient" INVOKESTATIC kotlin/jvm/internal/Intrinsics.throwUninitializedPropertyAccessException (Ljava/lang/String;)V L11 ALOAD 1 INVOKEVIRTUAL com/project/network/ApiClient.somethingList (Ljava/lang/String;)Lrx/Observable; GETSTATIC com/project/package/SomeActivity$getDataFor$1.INSTANCE : Lcom/project/package/SomeActivity$getDataFor$1; CHECKCAST rx/functions/Func1 L12 LINENUMBER 161 L12 INVOKEVIRTUAL rx/Observable.map (Lrx/functions/Func1;)Lrx/Observable; ALOAD 0 CHECKCAST com/trello/rxlifecycle/components/support/RxAppCompatActivity L13 LINENUMBER 162 L13 INVOKESTATIC com/project/extensions/ObservableExtensionsKt.lifecycle (Lrx/Observable;Lcom/trello/rxlifecycle/components/support/RxAppCompatActivity;)Lrx/Observable; ALOAD 0 CHECKCAST com/project/widgets/HasFullWindowProgress L14 LINENUMBER 163 L14 INVOKESTATIC com/project/widgets/ProgressKt.showProgress (Lrx/Observable;Lcom/project/widgets/HasFullWindowProgress;)Lrx/Observable; L15 LINENUMBER 164 L15 INVOKESTATIC com/project/extensions/ObservableExtensionsKt.observeOnMainThread (Lrx/Observable;)Lrx/Observable; NEW com/project/package/SomeActivity$getDataFor$2 DUP ALOAD 0 INVOKESPECIAL com/project/package/SomeActivity$getDataFor$2.<init> (Lcom/project/package/SomeActivity;)V CHECKCAST rx/functions/Action1 NEW com/project/package/SomeActivityKt$sam$Action1$22181393 DUP ALOAD 0 LDC "Fetching something list failed" ICONST_0 ANEWARRAY java/lang/Object INVOKESTATIC com/project/extensions/ActivityErrorHandlingExtensionsKt.defaultOnError (Landroid/app/Activity;Ljava/lang/String;[Ljava/lang/Object;)Lkotlin/jvm/functions/Function1; DUP IFNONNULL L16 POP POP2 ACONST_NULL GOTO L17 L16 INVOKESPECIAL com/project/package/SomeActivityKt$sam$Action1$22181393.<init> (Lkotlin/jvm/functions/Function1;)V L17 CHECKCAST rx/functions/Action1 L18 LINENUMBER 165 L18 INVOKEVIRTUAL rx/Observable.subscribe (Lrx/functions/Action1;Lrx/functions/Action1;)Lrx/Subscription; POP L19 LINENUMBER 170 L19 RETURN L20 LOCALVARIABLE this Lcom/project/package/SomeActivity; L0 L20 0 LOCALVARIABLE id Ljava/lang/String; L0 L20 1 MAXSTACK = 7 MAXLOCALS = 2

几周前我遇到了类似的问题。 这里基本上是我做了什么来避免ClassNotFoundException ，在我的情况是由于更新Android Studio，Gradle等之后的Multidex“配置”。

  1. 将compile 'com.android.support:multidex:1.0.1'添加到应用程序gradle文件中的依赖关系列表中。

  2. 删除Multidex.install(this); 从您的Application类的onCreate()方法中添加以下内容到您的Application类中： 

     @Override protected void attachBaseContext(Context context) { super.attachBaseContext(context); MultiDex.install(this); }

在更新gradle版本之后，我得到了错误，所以请确保你所有的东西都是最新的。

希望它有帮助。

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