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java.lang.NoClassDefFoundError: com.crashlytics.android.beta.Beta	at com.crashlytics.android.Crashlytics.(Crashlytics.java:29)	at com.application.app1.activities.LoginActivity.onCreate(LoginActivity.java:65)	at android.app.Activity.performCreate(Activity.java:5122)	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1146)	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2315)	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)	at android.app.ActivityThread.access$600(ActivityThread.java:165)	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)	at android.os.Handler.dispatchMessage(Handler.java:107)	at android.os.Looper.loop(Looper.java:194)	at android.app.ActivityThread.main(ActivityThread.java:5391)	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(Method.java:525)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)	at dalvik.system.NativeStart.main(Native Method)