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#r8

2 stories

Banner: unreadable crash addresses turning into readable function names on a phone outline

Mobile Development

Mobile crash triage workflow: from symbolication to release tracking

Daniel Tran · Aug 13, 2025 · 10 min read

A practical crash triage workflow for iOS and Android teams: get readable stack traces with dSYMs and R8 mapping files, group crashes sensibly, reproduce with context, fix with a test and confirm the fix per release with staged rollouts.

Banner: React Native Android release build crashed on launch while debug worked because R8 stripped a class

Mobile Development Bug Report

React Native Android release build crashed on launch while debug worked: R8 stripped a class

Marcus Lindqvist · Jan 29, 2025 · 7 min read

Our React Native app ran perfectly in debug, then the release APK closed instantly on every device. adb logcat showed a ClassNotFoundException for a class used through reflection by a native SDK, which R8 had removed during minification. How we read the crash, wrote keep rules and verified with mapping.txt.