android 在真机上运行出错，找不到原因，程序打不开，闪屏一下就关了

[wy109443322]

07-12 21:10:10.239: E/AndroidRuntime(4667): FATAL EXCEPTION: main
07-12 21:10:10.239: E/AndroidRuntime(4667): Process: com.android.wy.readclub, PID: 4667
07-12 21:10:10.239: E/AndroidRuntime(4667): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.android.wy.readclub/com.android.wy.readclub.SplashScreen}: java.lang.ClassNotFoundException: Didn't find class "com.android.wy.readclub.SplashScreen" on path: DexPathList[[zip file "/data/app/com.android.wy.readclub-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2214)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2363)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread.access$800(ActivityThread.java:147)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.os.Handler.dispatchMessage(Handler.java:102)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.os.Looper.loop(Looper.java:135)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread.main(ActivityThread.java:5235)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.reflect.Method.invoke(Native Method)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.reflect.Method.invoke(Method.java:372)
07-12 21:10:10.239: E/AndroidRuntime(4667): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:906)
07-12 21:10:10.239: E/AndroidRuntime(4667): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:701)
07-12 21:10:10.239: E/AndroidRuntime(4667): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.wy.readclub.SplashScreen" on path: DexPathList[[zip file "/data/app/com.android.wy.readclub-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
07-12 21:10:10.239: E/AndroidRuntime(4667): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.Instrumentation.newActivity(Instrumentation.java:1065)
07-12 21:10:10.239: E/AndroidRuntime(4667): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2204)
07-12 21:10:10.239: E/AndroidRuntime(4667): ... 10 more
07-12 21:10:10.239: E/AndroidRuntime(4667): Suppressed: java.lang.ClassNotFoundException: com.android.wy.readclub.SplashScreen
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.Class.classForName(Native Method)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
07-12 21:10:10.239: E/AndroidRuntime(4667): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
07-12 21:10:10.239: E/AndroidRuntime(4667): ... 13 more
07-12 21:10:10.239: E/AndroidRuntime(4667): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

[solo318]

在模拟器上运行可以么？ 我会现在模拟器上运行，方便调试。另外，方便查看编译情况等。 你可以再模拟器上试试，可以的话 可以推断出做成apk错误或真机上的问题，不可以，可以推断出代码问题。 具体代码问题，楼上都有回答，感觉有道理，但是我更推荐调查问题的方法~~楼主加油

[小撇儿1992]

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.wy.readclub.SplashScreen" on path: DexPathList[[zip file "/data/app/com.android.wy.readclub- 没有这个类, import是不是写错了

[jiao2530]

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.wy.readclub.SplashScreen" on path: DexPathList[[zip file "/data/app/com.android.wy.readclub-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] 找不到类 看看是不是把包导错了 或者有没有在manifeast里面注册

[Purple7826]

楼主显然是程序没有找到你的类吧，classNotFound，看不到吗？你用的splashScreen如果是activity，里的在manifeast里面注册！

[月亮弯弯2013]

楼主解决了么

[gouphigh2]

project clean一下，再运行

[摘星猿]

com.android.wy.readclub.SplashScreen 把这个包名改一下吧 和系统包名重复了 com.adnroid 是系统指定的包名 里面放的是系统类！

[smile_raccoon]

楼主写都不错啊!

[silence58]

clean试试呢

[Jing丶無雙]

打包APK前Project → Clean待打包项目，在Clean前取消Build Automatically的勾选，最后打包即可