首次用eclipse测试android程序，一堆报错如下：
11-30 13:41:17.102: D/dalvikvm(619):
Not late-enabling CheckJNI (already on)
11-30 13:41:18.152: E/Trace(619):
error opening trace file: No such file or directory (2)
11-30 13:41:18.422: D/AndroidRuntime(619):
Shutting down VM
11-30 13:41:18.452: W/dalvikvm(619):
threadid=1: thread exiting with uncaught exception (group=0x40a13300)
11-30 13:41:18.502: E/AndroidRuntime(619):
FATAL EXCEPTION: main
11-30 13:41:18.502: E/AndroidRuntime(619):
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.wuyang.test2/com.wuyang.test2.MainActivity}:
java.lang.ClassNotFoundException: com.wuyang.test2.MainActivity
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread.access$600(ActivityThread.java:130)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.os.Looper.loop(Looper.java:137)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread.main(ActivityThread.java:4745)
11-30 13:41:18.502: E/AndroidRuntime(619):
at java.lang.reflect.Method.invokeNative(Native Method)
11-30 13:41:18.502: E/AndroidRuntime(619):
at java.lang.reflect.Method.invoke(Method.java:511)
11-30 13:41:18.502: E/AndroidRuntime(619):
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-30 13:41:18.502: E/AndroidRuntime(619):
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-30 13:41:18.502: E/AndroidRuntime(619):
at dalvik.system.NativeStart.main(Native Method)
11-30 13:41:18.502: E/AndroidRuntime(619):
Caused by: java.lang.ClassNotFoundException: com.wuyang.test2.MainActivity
11-30 13:41:18.502: E/AndroidRuntime(619):
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
11-30 13:41:18.502: E/AndroidRuntime(619):
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-30 13:41:18.502: E/AndroidRuntime(619):
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
11-30 13:41:18.502: E/AndroidRuntime(619):
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
11-30 13:41:18.502: E/AndroidRuntime(619):
... 11 more
因为是第一次对我打击很大T_T，所以请大神们帮我看看困扰好久了谢谢
----------------------------------------------------------------------------------------------------
package com.wuyang;
import android.app.Activity;
import android.os.Bundle;
import com.wuyang.test2.R;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
}
}
?----------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/UserName"
android:textSize="20sp"
android:text="@string/user_name"
/>
</LinearLayout>
?
----------------------------------------------------------------------------------------------------
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.wuyang.test2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme"
>
<activity android:name="MainActivity">
<intent-filter >
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
------解决思路----------------------
manifest 的activity路径没和具体activity对应，manifest里面package+activity=com.wuyang.test2.MainActivity,但你具体路径为com.wuyang.MainActivity。package com.wuyang;改为package com.wuyang.test2