How do you interpret a deobfuscated Android crash report?

Question

I downloaded a crash report from my app\'s Google Play admin area, ran it through retrace.sh to deobfuscate the Proguard mapping, and it produced the output bel

Answer 1

ProGuard has removed the optional attributes SourceFile and LineNumberTable from the obfuscated application. As a result, the stack traces don't have line numbers, causing some ambiguity. ReTrace prints out a list of possible alternatives for each line of the stack trace.

You can get stack traces that are easier to interpret by adding the following lines to your proguard-project.txt:

-renamesourcefileattribute MyApplication
-keepattributes SourceFile,LineNumberTable

See the ProGuard manual > ReTrace > Usage.

See the ProGuard manual > Examples > Producing useful stack traces