Question

我使用Cocos2dx库设置了Eclipse IDE。我正在尝试在cocos2dx库中设置并运行helloworld项目，但是在helloworld.apk成功上传到模拟器后，我在LogCat中遇到此错误。

我在SDK 17上 Eclipse Build：v22.0.1-685705

我已经在stackoverflow上查看了近4-5个类似的帖子但是已经尝试了所有内容而不确定如何解决这个问题。

这是LogCat条目：

06-26 06:30:27.411: E/AndroidRuntime(781): FATAL EXCEPTION: main
06-26 06:30:27.411: E/AndroidRuntime(781): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.game.demo/com.game.demo.helloworld}: java.lang.ClassNotFoundException: Didn't find class "com.game.demo.helloworld" on path: /data/app/com.game.demo-2.apk
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.os.Handler.dispatchMessage(Handler.java:99)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.os.Looper.loop(Looper.java:137)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.main(ActivityThread.java:5041)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.reflect.Method.invokeNative(Native Method)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.reflect.Method.invoke(Method.java:511)
06-26 06:30:27.411: E/AndroidRuntime(781):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-26 06:30:27.411: E/AndroidRuntime(781):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-26 06:30:27.411: E/AndroidRuntime(781):  at dalvik.system.NativeStart.main(Native Method)
06-26 06:30:27.411: E/AndroidRuntime(781): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.game.demo.helloworld" on path: /data/app/com.game.demo-2.apk
06-26 06:30:27.411: E/AndroidRuntime(781):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
06-26 06:30:27.411: E/AndroidRuntime(781):  ... 11 more
06-26 06:30:27.411: E/AndroidRuntime(781): FATAL EXCEPTION: main
06-26 06:30:27.411: E/AndroidRuntime(781): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.game.demo/com.game.demo.helloworld}: java.lang.ClassNotFoundException: Didn't find class "com.game.demo.helloworld" on path: /data/app/com.game.demo-2.apk
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.os.Handler.dispatchMessage(Handler.java:99)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.os.Looper.loop(Looper.java:137)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.main(ActivityThread.java:5041)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.reflect.Method.invokeNative(Native Method)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.reflect.Method.invoke(Method.java:511)
06-26 06:30:27.411: E/AndroidRuntime(781):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-26 06:30:27.411: E/AndroidRuntime(781):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-26 06:30:27.411: E/AndroidRuntime(781):  at dalvik.system.NativeStart.main(Native Method)
06-26 06:30:27.411: E/AndroidRuntime(781): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.game.demo.helloworld" on path: /data/app/com.game.demo-2.apk
06-26 06:30:27.411: E/AndroidRuntime(781):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
06-26 06:30:27.411: E/AndroidRuntime(781):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
06-26 06:30:27.411: E/AndroidRuntime(781):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
06-26 06:30:27.411: E/AndroidRuntime(781):  ... 11 more

这是我的AndroidManifest.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.game.demo"
      android:versionCode="1"
      android:versionName="1.0">

    <uses-sdk android:minSdkVersion="8"/>
    <uses-feature android:glEsVersion="0x00020000" />

    <application android:label="@string/app_name"
        android:icon="@drawable/icon">

        <activity android:name=".helloworld"
                  android:label="@string/app_name"
                  android:screenOrientation="landscape"
                  android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
                  android:configChanges="orientation">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    <supports-screens android:largeScreens="true"
                      android:smallScreens="true"
                      android:anyDensity="true"
                      android:normalScreens="true"/>
</manifest>

Answer 1

您的清单包被声明为com.game.demo，但您的文件位于com.game.demo.helloworld。

尝试：

<activity android:name="com.game.demo.helloworld.helloworld"

Answer 2

我昨天刚刚遇到类似的错误，也没有成功提供SO上提供的所有答案。我终于找到了什么：

我在代码中的任何地方都使用了“ViewPager”。

但是在使用的.xml文件中，我意外地输入了“viewPager” - 当然无法找到。

此外，正如我今天发现的那样 - 请仔细检查您在.xml中使用的对象的包名称（如果有的话）。

Answer 3

您是否使用apk导出cocos2dx jar？如果不是这样的话，它会编译，但崩溃。

.apk上传成功，但启动意图导致ClassNotFoundException com.game.demo.helloworld

3 个答案: