我一直在阅读其他人遇到过这个问题的解决方案,而且大多数答案都表明它是清单的问题,但我看不出有什么问题。我看起来很准确但我一直在运行时ClassNotFoundException。
SongbirdActivity.java:
package com.songbirdapp.songbird;
import android.app.Activity;
import android.os.Bundle;
public class SongbirdActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.songbirdapp.songbird"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:targetSdkVersion="15" />
<uses-sdk android:minSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".SongbirdActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
有人能在这里看到问题吗?
LOGCAT输出:
01-30 15:28:21.622: D/AndroidRuntime(1315): Shutting down VM
01-30 15:28:21.692: W/dalvikvm(1315): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
01-30 15:28:21.712: E/AndroidRuntime(1315): FATAL EXCEPTION: main
01-30 15:28:21.712: E/AndroidRuntime(1315): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.songbirdapp.songbird/com.songbirdapp.songbird.SongbirdActivity}: java.lang.ClassNotFoundException: com.songbirdapp.songbird.SongbirdActivity
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1880)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread.access$600(ActivityThread.java:123)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.os.Handler.dispatchMessage(Handler.java:99)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.os.Looper.loop(Looper.java:137)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread.main(ActivityThread.java:4424)
01-30 15:28:21.712: E/AndroidRuntime(1315): at java.lang.reflect.Method.invokeNative(Native Method)
01-30 15:28:21.712: E/AndroidRuntime(1315): at java.lang.reflect.Method.invoke(Method.java:511)
01-30 15:28:21.712: E/AndroidRuntime(1315): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-30 15:28:21.712: E/AndroidRuntime(1315): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-30 15:28:21.712: E/AndroidRuntime(1315): at dalvik.system.NativeStart.main(Native Method)
01-30 15:28:21.712: E/AndroidRuntime(1315): Caused by: java.lang.ClassNotFoundException: com.songbirdapp.songbird.SongbirdActivity
01-30 15:28:21.712: E/AndroidRuntime(1315): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
01-30 15:28:21.712: E/AndroidRuntime(1315): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
01-30 15:28:21.712: E/AndroidRuntime(1315): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
01-30 15:28:21.712: E/AndroidRuntime(1315): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871)
01-30 15:28:21.712: E/AndroidRuntime(1315): ... 11 more
答案 0 :(得分:1)
这个问题违背了所有回答这个问题的尝试。我要修改项目并重新开始,然后只需复制并粘贴旧代码。
答案 1 :(得分:0)
我看到了同样的行为,最终为我解决的是确保当我去导出apk时,在该位置没有同名的现有apk文件。当有(例如,在一个小的改变之后导出)时,apk通常最终会变得明显更小(~600k vs~720k),并且一旦启动,通常会导致此CallNotFoundException。
一旦我确定在导出之前删除现有的APK,我就停止了这个讨厌的问题。
也许这会帮助别人。
Windows 7上的Eclipse 4.2.0 ADT 21.0.0