如何解决抛出java.lang.ClassNotFoundException在ActivityThread.performLaunchActivity？ [英] How to resolve java.lang.ClassNotFoundException in ActivityThread.performLaunchActivity?

问题描述

有关我的Andr​​oid应用程序，我得到了谷歌Play的开发者控制台以下错误：

For my Android application, I get the following error in Google Play's developer console:

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{PACKAGE_NAME/PACKAGE_NAME.MainActivity}: java.lang.ClassNotFoundException: PACKAGE_NAME.MainActivity in loader dalvik.system.PathClassLoader[/mnt/asec/PACKAGE_NAME-1/pkg.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3693)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: PACKAGE_NAME.MainActivity in loader dalvik.system.PathClassLoader[/mnt/asec/PACKAGE_NAME-1/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565)

虽然这个错误出现极为罕见（和大概可以忽略不计），我觉得更清洁有一个无差错的开发者控制台:)，此外，我只是想知道原因这个错误。

Although this error appears extremely rarely (and can probably be neglected), I find it cleaner to have a error-free developer console :) And furthermore, I would just like to know the causes for this error.

是的，它好像有不能被发现的一类。但为什么？我怎样才能prevent呢？的

推荐答案

在进一步的研究，我相信你是正确的事实，它绝对是一个用户错误。该 [/ MNT / ASEC / PACKAGE_NAME-1 / pkg.apk] 很可能意味着他们正试图以您的应用程序移动到SD卡。请阅读这里：

Update(4/26/15):

After further research I believe you are right in the fact that its definitely a user error. The [/mnt/asec/PACKAGE_NAME-1/pkg.apk] most likely means they are trying to move your app to the SD card. Please read here:

<一个href="http://stackoverflow.com/questions/5483947/android-intermittent-class-not-found-run-time-exception">Android间歇类未找到运行时异常

＆QUOT;无法实例化活性QUOT;错误

<一个href="http://stackoverflow.com/questions/4820554/android-unable-to-instantiate-activity-classnotfoundexception">Android:无法实例活动/ ClassNotFoundException的

这是一个Java的RuntimeException所看到的logcat的。我见过这种情况发生很多次，当我还没有加入活动，以正确体现了。

This is a Java RuntimeException as seen by Logcat. I've seen this happen many times before when I have not added the Activity to manifest correctly.

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{PACKAGE_NAME/PACKAGE_NAME.MainActivity}: java.lang.ClassNotFoundException: PACKAGE_NAME.MainActivity in loader dalvik.system.PathClassLoader[/mnt/asec/PACKAGE_NAME-1/pkg.apk]

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