Androi java.lang.NoClassDefFoundError——on path: DexPathList[[zip file "/data/app/com.example-1/base.

本文详细解析了在Kotlin开发中遇到的包名路径错误问题,包括删除包后残留的引用导致的编译错误,以及找不到特定类路径的情况。提供了包括正确导包、调整InstantRun设置、清理并重建项目、检查ABI过滤器和Gradle配置等解决方案。

在写kotlin时,包没有安排好 重新改了下类包分配,报错了这个,后来又都退了回去但是bug一直在。
有个大坑,kotlin包名路径,我之前创建的包已经删除了,但是其他类导包路径没有自动改回去,如
在这里插入图片描述
可以看到,并没有network的包。

解决办法:
1、看看你有没有类似情况 ,正确导包。
2、取消勾选下Instant Run(t在这里插入图片描述

这个改好之后又出现了新的Bug,找不到BaseApplication路径(WTF

java.lang.RuntimeException: Unable to instantiate application com.example.MyApp: java.lang.ClassNotFoundException: Didn't find class "com.xxx.BaseApplication" on path: DexPathList[[zip file "/data/app/com.example-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example-1/lib/arm, /vendor/lib, /system/lib]]

查找很多信息后解决办法:
1.so 库加载的问题,解决方法是请合理设置 abiFilters;

2.gradle 版本和 gradle tools 的版本问题

3.Android Studio clean 和 rebuild 后就能解决。

4.检查 Android Studio 的 instant run 是否开启,若开启,请关闭。

成功解决

2025-11-23 17:15:13.860 4697-4697/com.example.zl_h12pro E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.zl_h12pro, PID: 4697 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.zl_h12pro/com.example.zl_h12pro.MainActivity}: android.view.InflateException: Binary XML file line #421 in com.example.zl_h12pro:layout/activity_main: Binary XML file line #421 in com.example.zl_h12pro:layout/activity_main: Error inflating class com.skydroid.fpvplayer.FPVWidget at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7656) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) Caused by: android.view.InflateException: Binary XML file line #421 in com.example.zl_h12pro:layout/activity_main: Binary XML file line #421 in com.example.zl_h12pro:layout/activity_main: Error inflating class com.skydroid.fpvplayer.FPVWidget Caused by: android.view.InflateException: Binary XML file line #421 in com.example.zl_h12pro:layout/activity_main: Error inflating class com.skydroid.fpvplayer.FPVWidget Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance0(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:343) at android.view.LayoutInflater.createView(LayoutInflater.java:852) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082) at android.view.LayoutInflater.inflate(LayoutInflater.java:680) at android.view.LayoutInflater.inflate(LayoutInflater.java:532) at android.view.LayoutInflater.inflate(LayoutInflater.java:479) at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:699) at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:195) at com.example.zl_h12pro.MainActivity.onCreate(MainActivity.java:19) at android.app.Activity.performCreate(Activity.java:7994) at android.app.Activity.performCreate(Activity.java:7978) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7656) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/jvm/internal/Intrinsics; 2025-11-23 17:15:13.860 4697-4697/com.example.zl_h12pro E/AndroidRuntime: at com.skydroid.fpvplayer.FPVWidget.<init>(Unknown Source:2) ... 30 more Caused by: java.lang.ClassNotFoundException: Didn't find class "kotlin.jvm.internal.Intrinsics" on path: DexPathList[[dex file "/data/data/com.example.zl_h12pro/code_cache/.overlay/base.apk/classes3.dex", zip file "/data/app/~~nALsvpe7mtLdFSr9J-00UA==/com.example.zl_h12pro-H1jcCCFCYd-pbKiQVprIbw==/base.apk"],nativeLibraryDirectories=[/data/app/~~nALsvpe7mtLdFSr9J-00UA==/com.example.zl_h12pro-H1jcCCFCYd-pbKiQVprIbw==/lib/x86, /data/app/~~nALsvpe7mtLdFSr9J-00UA==/com.example.zl_h12pro-H1jcCCFCYd-pbKiQVprIbw==/base.apk!/lib/x86, /system/lib, /system_ext/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) ... 31 more
最新发布
11-24
10/30 10:31:58: Launching 'app' on OnePlus GM1900. App restart successful without requiring a re-install. $ adb shell am start -n "com.example.myapplication/com.example.myapplication.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER Connected to process 3090 on device 'oneplus-gm1900-127.0.0.1:5555'. Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page. I/art: Late-enabling -Xcheck:jni D/libnativebridge: call UnloadNativeBridge! state=1 W/System: ClassLoader referenced unknown path: /data/app/com.example.myapplication-1/lib/x86_64 W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener; at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2463) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:938) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170) at void com.example.myapplication.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:19) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6701) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2657) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2765) at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1488) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:154) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6305) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:892) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:782) Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.example.myapplication-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.myapplication-1/lib/x86_64, /system/lib64, /vendor/lib64]] at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312) at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2463) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:938) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170) at void com.example.myapplication.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:19) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6701) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2657) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2765) at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1488) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:154) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6305) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:892) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:782) D/AndroidRuntime: Shutting down VM E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.myapplication, PID: 3090 java.lang.RuntimeException: Unable to resume activity {com.example.myapplication/com.example.myapplication.MainActivity}: java.lang.IllegalArgumentException: column '_id' does not exist at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3468) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3508) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2771) at android.app.ActivityThread.-wrap14(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1488) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6305) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:892) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:782) Caused by: java.lang.IllegalArgumentException: column '_id' does not exist at android.database.AbstractCursor.getColumnIndexOrThrow(AbstractCursor.java:333) at android.widget.CursorAdapter.swapCursor(CursorAdapter.java:378) at android.widget.SimpleCursorAdapter.swapCursor(SimpleCursorAdapter.java:346) at android.widget.CursorAdapter.changeCursor(CursorAdapter.java:349) at com.example.myapplication.MainActivity.refreshListView(MainActivity.java:61) at com.example.myapplication.MainActivity.onResume(MainActivity.java:56) at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1269) at android.app.Activity.performResume_orig(Activity.java:6822) at android.app.Activity.performResume(Activity.java:6803) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3445) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3508)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2771)  at android.app.ActivityThread.-wrap14(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1488)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:154)  at android.app.ActivityThread.main(ActivityThread.java:6305)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:892)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:782)  为什么会出错
10-31
10/30 10:38:12: Launching 'app' on OnePlus GM1900. Install successfully finished in 473 ms. $ adb shell am start -n "com.example.myapplication/com.example.myapplication.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER Connected to process 3284 on device 'oneplus-gm1900-127.0.0.1:5555'. Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page. W/System: ClassLoader referenced unknown path: /data/app/com.example.myapplication-2/lib/x86_64 W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener; at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2463) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:938) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170) at void com.example.myapplication.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:19) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6701) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2657) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2765) at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1488) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:154) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6305) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:892) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:782) Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.example.myapplication-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.myapplication-2/lib/x86_64, /system/lib64, /vendor/lib64]] at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312) at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2463) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:938) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170) at void com.example.myapplication.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:19) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6701) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2657) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2765) at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1488) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:154) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6305) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:892) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:782) D/AndroidRuntime: Shutting down VM E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.myapplication, PID: 3284 java.lang.RuntimeException: Unable to resume activity {com.example.myapplication/com.example.myapplication.MainActivity}: java.lang.IllegalArgumentException: column '_id' does not exist at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3468) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3508) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2771) at android.app.ActivityThread.-wrap14(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1488) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6305) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:892) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:782) Caused by: java.lang.IllegalArgumentException: column '_id' does not exist at android.database.AbstractCursor.getColumnIndexOrThrow(AbstractCursor.java:333) at android.widget.CursorAdapter.swapCursor(CursorAdapter.java:378) at android.widget.SimpleCursorAdapter.swapCursor(SimpleCursorAdapter.java:346) at android.widget.CursorAdapter.changeCursor(CursorAdapter.java:349) at com.example.myapplication.MainActivity.refreshListView(MainActivity.java:61) at com.example.myapplication.MainActivity.onResume(MainActivity.java:56) at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1269) at android.app.Activity.performResume_orig(Activity.java:6822) at android.app.Activity.performResume(Activity.java:6803) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3445) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3508)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2771)  at android.app.ActivityThread.-wrap14(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1488)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:154)  at android.app.ActivityThread.main(ActivityThread.java:6305)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:892)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:782)  怎么修改
10-31
<think>我们正在处理一个`java.lang.NoClassDefFoundError`错误,具体是找不到 `android.app.Application$ActivityLifecycleCallbacks$-CC`这个类。根据引用[2]的信息,这个问题可能与`minSdkVersion`的设置有关。用户提到将`minSdkVersion`从21改为28后问题解决,但原因不明。同时,引用[3]提供了另一种解决类似类找不到问题的方法(添加`<uses-library>`),但我们的情况不同。###问题分析`NoClassDefFoundError`表示在编译时能找到类,但在运行时找不到。具体到 `ActivityLifecycleCallbacks$-CC`,这个类名看起来是编译器生成的(可能是为了兼容性而生成的桥接类)。注意,`-CC`可能是编译器生成内部类的标记。 ###可能原因1.**SDK版本兼容性问题**:`ActivityLifecycleCallbacks`接口在 API14(Android4.0)引入,但是某些实现细节可能在低版本上存在问题。特别是当使用新版本的编译工具时,可能会生成一些在低版本上不存在的辅助类(如 `$-CC`类)。 2. **Multidex问题**:如果方法数超过65536,并且没有正确配置Multidex,可能导致某些类不在主dex中,从而在启动时找不到。3.**混淆问题**:如果启用了混淆,可能将必要的类或接口移除。 4. **依赖冲突**:不同版本的依赖库可能包含不同的`ActivityLifecycleCallbacks`实现,导致冲突。###解决方案####1.提升minSdkVersion(临时解决方案)如引用[2]所述,将 `minSdkVersion`提升到28(或至少提升到14以上,但28可能是一个安全的选择)可以解决问题。但这不是根本解决方案,特别是当应用需要支持更低版本时。 在`build.gradle`中修改: ```groovyandroid{defaultConfig{minSdkVersion28//尝试提升到28//或者 minSdkVersion21但需要其他处理(见后续方案)}} ```####2.检查Multidex配置如果方法数超过限制,确保启用Multidex,并且将必要的类保留在主dex中。-启用Multidex:```groovyandroid {defaultConfig {multiDexEnabled true}}dependencies {implementation'androidx.multidex:multidex:2.0.1'}``` -在`AndroidManifest.xml`中设置 `MultiDexApplication`或自定义Application继承`MultiDexApplication`:```xml<applicationandroid:name="androidx.multidex.MultiDexApplication"... >```或者自定义Application:```javapublicclass MyApplication extendsMultiDexApplication{ ...}``` ####3.添加混淆规则在`proguard-rules.pro`中添加规则,避免混淆与`ActivityLifecycleCallbacks`相关的类: ```-keepclass android.app.Application{*;} -keep interfaceandroid.app.Application$ActivityLifecycleCallbacks {*;} -keep class* implementsandroid.app.Application$ActivityLifecycleCallbacks {*;} ```####4.检查依赖冲突运行`./gradlewapp:dependencies`查看依赖树,检查是否有多个版本的相同库。可以使用`resolutionStrategy`强制统一版本: ```groovyconfigurations.all{resolutionStrategy{force 'androidx.core:core:1.6.0'//强制其他有冲突的库}} ```####5.清理和重建清理项目并重新构建:-菜单:Build ->Clean Project,然后 Build-> Rebuild Project-或命令行:`./gradlewclean assembleDebug`###根本原因探究为什么提升 `minSdkVersion`能解决问题? -当`minSdkVersion`较低时,Android构建工具会生成一些兼容性代码(如`$-CC`类)来桥接新旧API。但在某些情况下,这些生成的类可能没有被正确包含在APK中(特别是主dex中),导致在低版本设备上启动时找不到类。 -提升`minSdkVersion`后,构建工具不再需要生成这些兼容类,因此问题消失。 ###替代方案(支持低版本)如果必须支持低版本(如minSdkVersion=21),可以尝试:1.**更新Android Gradle插件版本**:确保使用最新稳定版,因为旧版本插件可能有bug。 2. **明确指定核心库版本**:在 `build.gradle`中:```groovyandroid{compileOptions{coreLibraryDesugaringEnabledtrue}}dependencies{coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'}```(注意:这主要用于支持Java8+API,但可能间接解决某些类加载问题)###调试建议-在出现崩溃的设备上,检查完整的堆栈跟踪,确认崩溃发生的具体位置。 -使用APK分析工具(AndroidStudio ->Build-> AnalyzeAPK)查看APK中是否包含`android.app.Application$ActivityLifecycleCallbacks`相关的类。 ###总结优先尝试提升`minSdkVersion`到28,如果不可行,则配置Multidex并添加混淆规则。同时,确保依赖库版本一致。 §§相关问题§§1.如何正确配置 Android多Dex应用?2.Android中如何解决依赖库冲突?3.如何分析APK文件内容? 4. Android兼容性问题的常见解决方案有哪些?5.如何理解 Android构建过程中的desugaring?[^1]:引用自Apache CommonsLogging类缺失问题[^2]:引用自minSdkVersion调整解决类找不到问题[^3]:引用自添加`<uses-library>`解决类加载问题</think>## Android `NoClassDefFoundError: Application$ActivityLifecycleCallbacks` 解决方案 您遇到的 `java.lang.NoClassDefFoundError: Failed resolution of: Landroid/app/Application$ActivityLifecycleCallbacks$-CC` 错误通常由 SDK 版本兼容性问题引起。以下是详细解决方案: ### 核心问题分析 1. **`ActivityLifecycleCallbacks` 接口兼容性** `ActivityLifecycleCallbacks` 在 Android API 级别 14 (Android 4.0+) 引入,但某些实现细节在不同版本存在差异。 2. **编译器生成类问题** 类名中的 `$-CC` 表示这是编译器生成的桥接类,在低版本 SDK 上可能无法正确识别。 3. **引用[2]的验证** 您提供的引用[2]表明将 `minSdkVersion` 提升到 28 可解决问题,这与 API 兼容性直接相关。 ### 解决方案步骤 #### 1. 提升最低 SDK 版本(推荐) 在 `app/build.gradle` 中修改: ```groovy android { defaultConfig { // 最低提升到 API 28 (Android 9.0) minSdkVersion 28 // 同时确保目标版本合理 targetSdkVersion 33 } } ``` **原理**:`$-CC` 类在较新编译器中生成,提升 minSdkVersion 可避免低版本兼容层的问题[^2]。 #### 2. 检查依赖库兼容性 ```groovy dependencies { // 确保所有 AndroidX 库版本一致 implementation 'androidx.appcompat:appcompat:1.6.1' implementation 'androidx.core:core-ktx:1.12.0' // 检查其他库是否要求更高 minSdkVersion implementation 'com.example.library:1.0.0' // 查看其文档要求 } ``` #### 3. 添加显式接口实现(备选方案) 如果无法提升 minSdkVersion,在自定义 Application 类中实现接口: ```java public class MyApp extends Application implements Application.ActivityLifecycleCallbacks { @Override public void onCreate() { super.onCreate(); registerActivityLifecycleCallbacks(this); } // 必须实现所有接口方法 @Override public void onActivityCreated(Activity activity, Bundle savedInstanceState) {} @Override public void onActivityStarted(Activity activity) {} // ... 其他5个方法 } ``` #### 4. 多DEX配置(旧设备支持) ```groovy android { defaultConfig { multiDexEnabled true } } dependencies { implementation 'androidx.multidex:multidex:2.0.1' } ``` #### 5. 混淆规则保护 在 `proguard-rules.pro` 中添加: ``` -keep class * implements android.app.Application$ActivityLifecycleCallbacks { *; } ``` ### 根本原因解释 当 `minSdkVersion < 28` 时: 1. 编译器会生成 `ActivityLifecycleCallbacks$-CC` 类处理接口默认方法 2. 低版本 Android 运行时无法正确加载这些编译器生成的类 3. 提升 minSdkVersion 后,编译器不再生成特殊类,直接使用标准接口实现 ### 验证步骤 1. 清理项目:`Build > Clean Project` 2. 更新 Gradle:`File > Sync Project with Gradle Files` 3. 检查清单文件:确认 `<application>` 的 `android:name` 属性正确 > **提示**:如果使用第三方库(如分析工具),检查其是否要求实现 `ActivityLifecycleCallbacks`,某些库需要额外初始化。 ### 相关问题 1. 如何平衡 Android 应用的最低 SDK 版本和用户覆盖率? 2. Android 接口默认方法的兼容性处理机制是什么? 3. 如何检测 Android 应用中的过时 API 使用? 4. AndroidX 库版本冲突的解决方案有哪些? 5. 如何为低版本 Android 设备优化应用启动性能? [^1]: Apache Commons 类缺失解决方案 [^2]: minSdkVersion 调整解决类加载问题 [^3]: 使用 `<uses-library>` 解决类加载问题
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