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PONoClassDefFound when include other project in buildpath
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copied!<p>I have 2 projects: dummy and dummy-android. dummy-android uses Game class from dummy. I included dummy in Build Path of dummy-android but when run on emulator. It generates:</p> <pre><code>E/AndroidRuntime( 691): java.lang.NoClassDefFoundError: com.dummy.Game E/AndroidRuntime( 691): at com.dummy.activity.AndroidGame.onCreate(AndroidGame.java:13) E/AndroidRuntime( 691): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) E/AndroidRuntime( 691): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) E/AndroidRuntime( 691): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) E/AndroidRuntime( 691): at android.app.ActivityThread.access$2300(ActivityThread.java:125) E/AndroidRuntime( 691): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) E/AndroidRuntime( 691): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime( 691): at android.os.Looper.loop(Looper.java:123) E/AndroidRuntime( 691): at android.app.ActivityThread.main(ActivityThread.java:4627) E/AndroidRuntime( 691): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime( 691): at java.lang.reflect.Method.invoke(Method.java:521) E/AndroidRuntime( 691): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) E/AndroidRuntime( 691): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) E/AndroidRuntime( 691): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p><img src="https://i.stack.imgur.com/WZkTc.png" alt="enter image description here"></p> <p>I tried to remove dummy from dummy-android's Build Path, clean up, re-include it, clean up but it still doesn't work.</p> <p>My project doesn't show any compile errors! This is a bug of Eclipse! <strong>How to fix it</strong>? Thank you.</p> <p><strong>Update:</strong> Tried to restart Eclipse, cleanup two projects many times, re-run, nothing changes.</p> <p><strong>Update:</strong> @Martin Brakash. I unchecked project specific settings in both projects. It generates a new exception:</p> <pre><code>05-15 04:48:14.575: E/AndroidRuntime(971): FATAL EXCEPTION: main 05-15 04:48:14.575: E/AndroidRuntime(971): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.dummy.activity/com.dummy.activity.AndroidGame}: java.lang.ClassNotFoundException: com.dummy.activity.AndroidGame in loader dalvik.system.PathClassLoader[/data/app/com.dummy.activity-1.apk] 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.os.Handler.dispatchMessage(Handler.java:99) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.os.Looper.loop(Looper.java:123) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread.main(ActivityThread.java:4627) 05-15 04:48:14.575: E/AndroidRuntime(971): at java.lang.reflect.Method.invokeNative(Native Method) 05-15 04:48:14.575: E/AndroidRuntime(971): at java.lang.reflect.Method.invoke(Method.java:521) 05-15 04:48:14.575: E/AndroidRuntime(971): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 05-15 04:48:14.575: E/AndroidRuntime(971): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 05-15 04:48:14.575: E/AndroidRuntime(971): at dalvik.system.NativeStart.main(Native Method) 05-15 04:48:14.575: E/AndroidRuntime(971): Caused by: java.lang.ClassNotFoundException: com.dummy.activity.AndroidGame in loader dalvik.system.PathClassLoader[/data/app/com.dummy.activity-1.apk] 05-15 04:48:14.575: E/AndroidRuntime(971): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 05-15 04:48:14.575: E/AndroidRuntime(971): at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 05-15 04:48:14.575: E/AndroidRuntime(971): at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.Instrumentation.newActivity(Instrumentation.java:1021) 05-15 04:48:14.575: E/AndroidRuntime(971): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577) 05-15 04:48:14.575: E/AndroidRuntime(971): ... 11 more </code></pre>

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