闪退问题记录：Unable to instantiate activity ComponentInfo{xxxxxx.MainActivity}

最新推荐文章于 2025-09-11 01:47:08 发布

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本文详细解析了在Android Studio 4.0.1中创建的项目加入依赖库后运行闪退的问题，提供了具体的错误日志及解决方案，强调了Java版本兼容性的调整对于解决此类问题的重要性。

AS 4.0.1 新建的项目，在加入了依赖库后运行程序闪退,错误日志如下

Unable to instantiate activity ComponentInfo{xxxxxx.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "xxxxxx.MainActivity" on path: DexPathList[[zip file "/data/app/xxxxxxx-HfadAphcPqqepDhmjXsavg==/base.apk"],nativeLibraryDirectories=[/data/app/xxxxxx-HfadAphcPqqepDhmjXsavg==/lib/arm64, /system/lib64, /system/vendor/lib64]]
 Caused by: java.lang.ClassNotFoundException: Didn't find class "xxxxxx.MainActivity" on path: DexPathList[[zip file "/data/app/xxxxx-HfadAphcPqqepDhmjXsavg==/base.apk"],nativeLibraryDirectories=[/data/app/xxxxx-HfadAphcPqqepDhmjXsavg==/lib/arm64, /system/lib64, /system/vendor/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1174)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2747)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2931) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1620) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:173) 
        at android.app.ActivityThread.main(ActivityThread.java:6698) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:782) 
    	Suppressed: java.io.IOException: Failed to open dex files from /data/app/xxxxxx-HfadAphcPqqepDhmjXsavg==/base.apk because: Failure to verify dex file '/xxxxxxxx-HfadAphcPqqepDhmjXsavg==/base.apk': Bad method handle type 7
        at dalvik.system.DexFile.openDexFileNative(Native Method)
        at dalvik.system.DexFile.openDexFile(DexFile.java:353)
        at dalvik.system.DexFile.<init>(DexFile.java:100)
        at dalvik.system.DexFile.<init>(DexFile.java:74)
        at dalvik.system.DexPathList.loadDexFile(DexPathList.java:374)
        at dalvik.system.DexPathList.makeDexElements(DexPathList.java:337)

解决方案：在 app/build.gralde 的 android 配置下增加

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }