这个 LogCat 错误是什么意思？答案

【问题标题】：What does this LogCat error mean?这个 LogCat 错误是什么意思？
【发布时间】：2012-02-29 01:38:14
【问题描述】：

我试图从 E3roid 示例中运行一个示例。除非我这样做，否则我会在页面上强制关闭。这是 logcat 错误。通过查看，您能告诉我这是什么意思，有什么问题吗？

02-28 20:31:51.429: D/AndroidRuntime(1779): Shutting down VM
02-28 20:31:51.429: W/dalvikvm(1779): threadid=1: thread exiting with uncaught exception (group=0x40015578)
02-28 20:31:51.429: E/AndroidRuntime(1779): FATAL EXCEPTION: main
02-28 20:31:51.429: E/AndroidRuntime(1779): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{and.roid/and.roid.AndroidActivity}: java.lang.ClassNotFoundException: and.roid.AndroidActivity in loader dalvik.system.PathClassLoader[/data/app/and.roid-1.apk]
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.os.Looper.loop(Looper.java:130)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread.main(ActivityThread.java:3687)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at java.lang.reflect.Method.invokeNative(Native Method)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at java.lang.reflect.Method.invoke(Method.java:507)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at dalvik.system.NativeStart.main(Native Method)
02-28 20:31:51.429: E/AndroidRuntime(1779): Caused by: java.lang.ClassNotFoundException: and.roid.AndroidActivity in loader dalvik.system.PathClassLoader[/data/app/and.roid-1.apk]
02-28 20:31:51.429: E/AndroidRuntime(1779):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
02-28 20:31:51.429: E/AndroidRuntime(1779):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565)
02-28 20:31:51.429: E/AndroidRuntime(1779):     ... 11 more
02-28 20:31:57.820: I/Process(1779): Sending signal. PID: 1779 SIG: 9
02-28 20:34:48.691: D/AndroidRuntime(2072): Shutting down VM
02-28 20:34:48.691: W/dalvikvm(2072): threadid=1: thread exiting with uncaught exception (group=0x40015578)
02-28 20:34:48.691: E/AndroidRuntime(2072): FATAL EXCEPTION: main
02-28 20:34:48.691: E/AndroidRuntime(2072): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{and.roid/and.roid.AndroidActivity}: java.lang.ClassNotFoundException: and.roid.AndroidActivity in loader dalvik.system.PathClassLoader[/data/app/and.roid-1.apk]
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.os.Looper.loop(Looper.java:130)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread.main(ActivityThread.java:3687)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at java.lang.reflect.Method.invokeNative(Native Method)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at java.lang.reflect.Method.invoke(Method.java:507)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at dalvik.system.NativeStart.main(Native Method)
02-28 20:34:48.691: E/AndroidRuntime(2072): Caused by: java.lang.ClassNotFoundException: and.roid.AndroidActivity in loader dalvik.system.PathClassLoader[/data/app/and.roid-1.apk]
02-28 20:34:48.691: E/AndroidRuntime(2072):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
02-28 20:34:48.691: E/AndroidRuntime(2072):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565)
02-28 20:34:48.691: E/AndroidRuntime(2072):     ... 11 more
02-28 20:34:56.511: I/Process(2072): Sending signal. PID: 2072 SIG: 9

【问题讨论】：

标签： java android eclipse logcat

【解决方案1】：

您是否已将 AndroidActivity 添加到您的 AndroidManifest 中？

【讨论】：

很酷，但是我该如何声明呢？
<activity android:name=".ActivityNameGoesHere"/> 不要忘记点，把它放在你的活动元素中
谢谢！ smartlemon 又名赢家

【解决方案2】：

这可能意味着您没有在清单文件中正确声明您的活动。通常情况下，您会创建一个 Activity，但忘记将其包含在您的清单中，这时会出现这些稍微奇怪的消息。

【讨论】：

如果文件名为“robot”，我如何在这个 android 清单中声明它？
为什么<activity android:name="robot"/>在里面有intent-filter？