我有一个已发布的应用程序,该应用程序从用户那里获取有关ClassNotFoundException
我超出我的智慧试图修复的报告。我无法在 SO 上重现此崩溃和此错误的类似实例,要么是依赖路径不正确,要么是MainActivity
清单中的包不同。
依赖项路径错误的问题是 Eclipse 的问题,而所有其他错误都可以通过 Android Studio 的“同步”和“清理项目”轻松修复(我这样做无济于事)。
我已经三重检查了所有包名称,没有发现任何差异。
这是我的清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.johan.fsc">
<uses-permission android:name = "android.permission.VIBRATE"/>
<uses-permission android:name="com.android.vending.BILLING" />
<application
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:fullBackupContent="true">
<activity
android:name="com.johan.fsc.MainActivity"
android:screenOrientation="portrait"
android:label="@string/app_name"
android:theme="@style/splashscreenTheme"
android:hardwareAccelerated="false"
android:largeHeap="true">>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name = "com.johan.fsc.SettingsActivity"
android:theme="@style/PreferencesTheme"/>
</application>
这是我总是从用户那里得到的错误报告:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.johan.fsc/com.johan.fsc.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.johan.fsc.MainActivity" on path: DexPathList[[zip file "/data/app/com.johan.fsc-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2595)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5624)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.johan.fsc.MainActivity" on path: DexPathList[[zip file "/data/app/com.johan.fsc-1/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)
at android.app.Instrumentation.newActivity(Instrumentation.java:1071)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
... 10 more
Suppressed: java.io.IOException: Failed to open oat file from dex location '/data/app/com.johan.fsc-1/base.apk'
at dalvik.system.DexFile.openDexFileNative(Native Method)
at dalvik.system.DexFile.openDexFile(DexFile.java:295)
at dalvik.system.DexFile.<init>(DexFile.java:80)
at dalvik.system.DexFile.<init>(DexFile.java:59)
at dalvik.system.DexPathList.loadDexFile(DexPathList.java:262)
at dalvik.system.DexPathList.makeDexElements(DexPathList.java:231)
at dalvik.system.DexPathList.<init>(DexPathList.java:109)
at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:48)
at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:65)
at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:57)
at android.app.LoadedApk.getClassLoader(LoadedApk.java:370)
at android.app.LoadedApk.makeApplication(LoadedApk.java:562)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4818)
at android.app.ActivityThread.access$1500(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1531)
... 7 more
Caused by: java.io.IOException: Failed to open oat file from /data/app/com.johan.fsc-1/arm/base.odex (error Failed to open oat filename for reading: No such file or directory) (no dalvik_cache availible) and relocation failed.
... 22 more
Caused by: java.io.IOException:
... 22 more
Caused by: java.io.IOException: Failed to remove obsolete file from /data/dalvik-cache/arm/data@app@com.johan.fsc-1@base.apk@classes.dex when searching for dex file /data/app/com.johan.fsc-1/base.apk: Permission denied
... 22 more
Suppressed: java.lang.ClassNotFoundException: com.johan.fsc.MainActivity
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)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available/output.
罪魁祸首似乎是java.io.IOException: Failed to remove obsolete file from /data/dalvik-cache/arm/data@app@com.johan.fsc-1@base.apk@classes.dex when searching for dex file /data/app/com.johan.fsc-1/base.apk: Permission denied
,但我还没有找到为什么它被某些用户而不是大多数用户调用,更重要的是 - 如何修复它。