Suddenly my released app crashed while opening just after installing the app from play-store. But problem is that when I am running the code in Android Studio in debug mode app does not crash.
When I looked for crash error on google play console I saw some obfuscated code not easy to guess from where error was coming.
java.lang.NullPointerException:
at com.wl.model.a.b (Unknown Source)
at com.wl.model.a.a (Unknown Source)
at com.wl.model.a$1.a (Unknown Source)
at b.w$a.b (Unknown Source)
at b.a.b.run (Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:588)
at java.lang.Thread.run (Thread.java:818)
From error I know there is some null pointer exception but could not trace its origin.
Google play console says upload de-obfuscation file to de-obfuscate the error code.
Now my problem is that I am not able to locate the de-obfuscation file in my project source folder.
I tried uploading the pro-guard rules file but google play console rejects it.
Please provide me the path or place where I can look for de-obfuscation file (where it is usually present).
After you assembled your release apk the file is here:
./gradlew clean assembleFLAVORRelease
app/build/outputs/mapping/FLAVOR/release/mapping.txt
Keep in mind, that you probably should check your proguard rules:
-keepattributes SourceFile,LineNumberTable
Without this attribute you won't see the line and source file name in the play console.