Android SDK will auto-install the first time you launch Android Studio. You can get Android Studio for Windows, Mac, or Linux from the official download page.

A recent version of the Android Studio IDE and Android SDK installed.

Prerequisitesīefore we get started, make sure you have the following so you can follow along:

I’m going to walk you through how I diagnosed and fixed this issue using crash logs. For some users, the app crashed whenever they attempted to dial USSD codes from the app. The issue we’ll be diagnosing occurred in an early release of this app. Our Short Code Manager app is based on an app I built and published two years ago.

Have a user interface (UI) enabling the app user to dial shortcodes directly from the app.

Let users store short USSD codes like *123#.

Short Code Manager is an Android app I built for this post. To show you what I mean, I’m going to walk you through a root cause analysis after a crash in an example app called Short Code Manager. Looking at these logs is a great place to start your effort toward diagnosing and fixing the crash.

When apps crash, they generate logs containing information related to where the issues causing the crash occurred.

Logcat log android studio