java - Ioshed 2012 HomeActivity.class 未找到

Question

我有资源可以探索 http://code.google.com/p/iosched/ .我没有更改 list 或代码中的任何内容，因此:

<manifest
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.google.android.apps.iosched"

    ....

    <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="15"/>

    ....

    <activity
        android:name=".ui.HomeActivity"
        android:label="@string/app_name"
        android:theme="@style/Theme.Iosched.Home">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

我构建了该项目并安装在多个设备(gb、icm)上。启动时它说:

06-03 14:51:40.457: E/AndroidRuntime(1442): FATAL EXCEPTION: main 06-03 14:51:40.457: E/AndroidRuntime(1442): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.google.android.apps.iosched/com.google.android.apps.iosched.ui.HomeActivity}: java.lang.ClassNotFoundException: com.google.android.apps.iosched.ui.HomeActivity 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread.access$600(ActivityThread.java:130) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.os.Handler.dispatchMessage(Handler.java:99) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.os.Looper.loop(Looper.java:137) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread.main(ActivityThread.java:4745) 06-03 14:51:40.457: E/AndroidRuntime(1442): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 14:51:40.457: E/AndroidRuntime(1442): at java.lang.reflect.Method.invoke(Method.java:511) 06-03 14:51:40.457: E/AndroidRuntime(1442): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 06-03 14:51:40.457: E/AndroidRuntime(1442): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 06-03 14:51:40.457: E/AndroidRuntime(1442): at dalvik.system.NativeStart.main(Native Method) 06-03 14:51:40.457: E/AndroidRuntime(1442): Caused by: java.lang.ClassNotFoundException: com.google.android.apps.iosched.ui.HomeActivity 06-03 14:51:40.457: E/AndroidRuntime(1442): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 06-03 14:51:40.457: E/AndroidRuntime(1442): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 06-03 14:51:40.457: E/AndroidRuntime(1442): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.Instrumentation.newActivity(Instrumentation.java:1053) 06-03 14:51:40.457: E/AndroidRuntime(1442): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974) 06-03 14:51:40.457: E/AndroidRuntime(1442): ... 11 more

"java.lang.ClassNotFoundException:com.google.android.apps.iosched.ui.HomeActivity"这看起来很奇怪，因为这个类存在。

你有什么建议吗？

ps 我尝试清理和修复属性但徒劳无功。

Answer 1

我在 Eclipse 中遇到了同样的问题，那是因为我没有选择导出兼容包。 Eclipse -> 右键单击​​项目 -> Properties -> Java Build Path -> Order & Export -> 确保选中“Private Libraries”。

想法是 Activity 在那里，问题是 FragmentActivity 不存在于最终的 apk 文件中。