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so today i was checking my Crashlytics and found Application is Been crashed 88 times but couldn't find the source Here is the Exception Detail 

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.f.f.a()' on a null object reference
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3003)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3064)
       at android.app.ActivityThread.-wrap14(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1659)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6823)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1563)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1451)
Abubakar Rafi
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  • When we Using Pro-guard rules, then all class name and variable name changed. – Abhay Koradiya Sep 11 '18 at 07:47
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    Hi, Paul from Crashlytics here. Have you followed our guide on configuring ProGuard and DexGuard? If not, you may see obfuscated errors like the one you posted: https://docs.fabric.io/android/crashlytics/dex-and-proguard.html. – buser Sep 11 '18 at 19:27
  • updated the build with the proguard rules thanks paul – Abubakar Rafi Sep 12 '18 at 09:34

1 Answers1

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When you release an Apk file, you can define a path for mapping file which generate by pro-guard. Then you can use it to de-obfuscate com.example.f.f.a() and find location of error.

No Body
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