Unable to view crash logs from errors

[micheleRuocco]

When an error happens from inside the opencv framework such as an assertion failure, no crash logs are created nor in crashlytics am I able to see any information.

When running locally I am able to see an error message in the console telling me the reason for the crash but not when the app is distributed to others.

Any idea of how I can get these errors saved somewhere so I can fix them?