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Editorial Team
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Asked: 2026-06-05T08:29:35+00:00

In my app I want to open a MapActivity from a button click. But

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In my app I want to open a MapActivity from a button click. But on the button click,its showing a class not found error.

Im posting my error log also,so that it will be easy to correct me…

06-11 17:16:53.854: WARN/dalvikvm(890): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
06-11 17:16:53.865: ERROR/AndroidRuntime(890): FATAL EXCEPTION: main
06-11 17:16:53.865: ERROR/AndroidRuntime(890): java.lang.NoClassDefFoundError: com.iqmobi.SampleMapPage
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at com.iqmobi.Login.onClick(Login.java:61)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.view.View.performClick(View.java:2408)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.view.View$PerformClick.run(View.java:8816)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.os.Handler.handleCallback(Handler.java:587)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.os.Handler.dispatchMessage(Handler.java:92)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.os.Looper.loop(Looper.java:123)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at android.app.ActivityThread.main(ActivityThread.java:4627)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at java.lang.reflect.Method.invokeNative(Native Method)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at java.lang.reflect.Method.invoke(Method.java:521)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-11 17:16:53.865: ERROR/AndroidRuntime(890):     at dalvik.system.NativeStart.main(Native Method)
06-11 17:16:53.874: WARN/ActivityManager(60):   Force finishing activity com.iqmobi/.Login
06-11 17:16:54.384: WARN/ActivityManager(60): Activity pause timeout for HistoryRecord{4505c5d8 com.iqmobi/.Login}

The code which is moving to the MapActivity is

Intent successIntent=new Intent(Login.this,SampleMapPage.class);
startActivity(successIntent);

An additional information i checked,that,when i Toast instead of startActivity in my above code section,its working….Its something related to the button click,i think…..please help

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1 Answer

  1. Editorial Team

    Add <uses-library android:name="com.google.android.maps" /> to your manifest and make sure you’re using the Google API version of Android. Your manifest should look something like the one in this question.

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