就按照教程新建一个hello的应用，结果RUN的时候就报错，下面是报错日志和mainifest代码……模拟器也直接报unexpected closed，哎，大神们帮忙看看吧
09-28 22:04:03.404: D/AndroidRuntime(488): Shutting down VM
09-28 22:04:03.404: W/dalvikvm(488): threadid=1: thread exiting with uncaught exception (group=0x40015560)
09-28 22:04:03.424: E/AndroidRuntime(488): FATAL EXCEPTION: main
09-28 22:04:03.424: E/AndroidRuntime(488): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.hello/com.example.hello.MainActivity}: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.os.Looper.loop(Looper.java:123)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.reflect.Method.invokeNative(Native Method)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.reflect.Method.invoke(Method.java:507)
09-28 22:04:03.424: E/AndroidRuntime(488): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-28 22:04:03.424: E/AndroidRuntime(488): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-28 22:04:03.424: E/AndroidRuntime(488): at dalvik.system.NativeStart.main(Native Method)
09-28 22:04:03.424: E/AndroidRuntime(488): Caused by: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:04:03.424: E/AndroidRuntime(488): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
09-28 22:04:03.424: E/AndroidRuntime(488): ... 11 more
09-28 22:04:12.215: I/Process(488): Sending signal. PID: 488 SIG: 9
09-28 22:13:05.604: D/AndroidRuntime(518): Shutting down VM
09-28 22:13:05.604: W/dalvikvm(518): threadid=1: thread exiting with uncaught exception (group=0x40015560)
09-28 22:13:05.625: E/AndroidRuntime(518): FATAL EXCEPTION: main
09-28 22:13:05.625: E/AndroidRuntime(518): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.hello/com.example.hello.MainActivity}: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.os.Looper.loop(Looper.java:123)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.reflect.Method.invokeNative(Native Method)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.reflect.Method.invoke(Method.java:507)
09-28 22:13:05.625: E/AndroidRuntime(518): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-28 22:13:05.625: E/AndroidRuntime(518): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-28 22:13:05.625: E/AndroidRuntime(518): at dalvik.system.NativeStart.main(Native Method)
09-28 22:13:05.625: E/AndroidRuntime(518): Caused by: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:13:05.625: E/AndroidRuntime(518): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
09-28 22:13:05.625: E/AndroidRuntime(518): ... 11 more
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hello"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity android:name=".MainActivity" android:label="com.example.hello">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
09-28 22:04:03.404: D/AndroidRuntime(488): Shutting down VM
09-28 22:04:03.404: W/dalvikvm(488): threadid=1: thread exiting with uncaught exception (group=0x40015560)
09-28 22:04:03.424: E/AndroidRuntime(488): FATAL EXCEPTION: main
09-28 22:04:03.424: E/AndroidRuntime(488): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.hello/com.example.hello.MainActivity}: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.os.Looper.loop(Looper.java:123)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.reflect.Method.invokeNative(Native Method)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.reflect.Method.invoke(Method.java:507)
09-28 22:04:03.424: E/AndroidRuntime(488): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-28 22:04:03.424: E/AndroidRuntime(488): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-28 22:04:03.424: E/AndroidRuntime(488): at dalvik.system.NativeStart.main(Native Method)
09-28 22:04:03.424: E/AndroidRuntime(488): Caused by: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:04:03.424: E/AndroidRuntime(488): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-28 22:04:03.424: E/AndroidRuntime(488): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
09-28 22:04:03.424: E/AndroidRuntime(488): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
09-28 22:04:03.424: E/AndroidRuntime(488): ... 11 more
09-28 22:04:12.215: I/Process(488): Sending signal. PID: 488 SIG: 9
09-28 22:13:05.604: D/AndroidRuntime(518): Shutting down VM
09-28 22:13:05.604: W/dalvikvm(518): threadid=1: thread exiting with uncaught exception (group=0x40015560)
09-28 22:13:05.625: E/AndroidRuntime(518): FATAL EXCEPTION: main
09-28 22:13:05.625: E/AndroidRuntime(518): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.hello/com.example.hello.MainActivity}: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.os.Looper.loop(Looper.java:123)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.reflect.Method.invokeNative(Native Method)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.reflect.Method.invoke(Method.java:507)
09-28 22:13:05.625: E/AndroidRuntime(518): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-28 22:13:05.625: E/AndroidRuntime(518): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-28 22:13:05.625: E/AndroidRuntime(518): at dalvik.system.NativeStart.main(Native Method)
09-28 22:13:05.625: E/AndroidRuntime(518): Caused by: java.lang.ClassNotFoundException: com.example.hello.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.hello-1.apk]
09-28 22:13:05.625: E/AndroidRuntime(518): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-28 22:13:05.625: E/AndroidRuntime(518): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
09-28 22:13:05.625: E/AndroidRuntime(518): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
09-28 22:13:05.625: E/AndroidRuntime(518): ... 11 more
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hello"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity android:name=".MainActivity" android:label="com.example.hello">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
