app-debug.apk is crashing while I install it manually on my Android device

Question

My app is running fine on Android device when I run project from Android studio. But when I install app-debug.apk manually on my device then app is crashing on starting. And app-debug-unaligned.apk is not generating. Kindly give any solution, Thanks in advance.

Answer 1

Delete debug.apk from output folder under build in app. and generate again and install .

Answer 2

Mostly the issue comes due to presence of older application with same package name or different version number. Also, if you are sharing the apk using whatsapp, its likely to happen that apk wont install properly. And lastly improper build can also cause the issue. So to sum up-

1. Uninstall previous app
2. Check for version conflicts
3. Avoid sharing apk through whatsapp
4. Clean project
5. Build Apk and then distribute
6. Build signed Apk and then try installing(Recommended)