CrashLytics not showing crash reason

Question

I am using crashlytics in my app. It caught a crash in the app, but not telling the line of code where crash occured. It is showing the verify error, but not telling where it is. This link is a screenshot to the report. It is showing ??? about the crash, see this link . How to study this crash now? ._.

Answer 1

Preserve annotations, line numbers, and source file names

-keepattributes *Annotation*,SourceFile,LineNumberTable

If you are using custom exceptions, add this line so that custom exception types are skipped during obfuscation:

-keep public class * extends java.lang.Exception
-printmapping mapping.txt

To skip running ProGuard on Crashlytics, add the following. This will help speed up builds so that we can ship and test even faster.

-keep class com.crashlytics.** { *; }
-dontwarn com.crashlytics.**

More Info: Follow this link to Configure Crashlytics with Proguard.

https://docs.fabric.io/android/crashlytics/dex-and-proguard.html