How can you identify the cause of a crash when launching an application?

The following methods are usually used to identify the cause of a crash when launching an Android application:

• Logcat logs: connect to the device or emulator via Android Studio and open Logcat. Look for error messages (e.g., Exception, Fatal error) in the logs that occurred during startup.
• Debugger: run the application in debug mode to catch exceptions and understand at which stage the crash occurs.
• Crashlytics or other crash reporting services: if the app is already in production, these tools can help obtain the call stack and crash information.
• Checking the manifest and dependencies: sometimes the crash is related to incorrect configuration of AndroidManifest.xml or library conflicts.

Example of using Logcat to find an error:

adb logcat | grep -i "exception"

This will filter messages with exceptions and help quickly identify the cause of the crash.