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Editorial Team
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Asked: 2026-06-01T21:49:35+00:00

How to solve this NoClassDefFoundError. I have integrated Zxing in my app, every thing

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How to solve this NoClassDefFoundError.
I have integrated Zxing in my app, every thing is working fine. Then I have updated my sdk and eclipse plugin, and when I run the project the log says 

03-27 17:27:45.173: E/AndroidRuntime(8917): FATAL EXCEPTION: main
03-27 17:27:45.173: E/AndroidRuntime(8917): java.lang.ExceptionInInitializerError
03-27 17:27:45.173: E/AndroidRuntime(8917):     at java.lang.Class.newInstanceImpl(Native Method)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at java.lang.Class.newInstance(Class.java:1429)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.os.Handler.dispatchMessage(Handler.java:99)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.os.Looper.loop(Looper.java:123)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at android.app.ActivityThread.main(ActivityThread.java:4627)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at java.lang.reflect.Method.invokeNative(Native Method)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at java.lang.reflect.Method.invoke(Method.java:521)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-27 17:27:45.173: E/AndroidRuntime(8917):     at dalvik.system.NativeStart.main(Native Method)
03-27 17:27:45.173: E/AndroidRuntime(8917): Caused by: java.lang.NoClassDefFoundError: com.google.zxing.ResultMetadataType
03-27 17:27:45.173: E/AndroidRuntime(8917):     at records.model.CaptureActivity.<clinit>(CaptureActivity.java:94)`
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1 Answer

  1. Editorial Team

    I didn’t have to put the jar-library in assets or lib(s), but only tick the box for this jar in Properties -> Java Build Path -> “Order and Export” (it was listed before, but not selected)

    You might have to do a project > clean after this to take effect! (Thanks mwengler and Mohamed)

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