Can't open installed apk file on smartphone?

Question

Android

I created an apk file in android studio. The smartphone version is android 8.0.0. When creating the project, I set the same version. After installing this file, I try to open it, and it says that the application has stopped. What could be the problem?

Answer 1

Perhaps there is an error in the application itself (that is, in the application code).

Answer 2

See the logcat output, it can lead to the right thoughts and you won’t need to guess on the coffee grounds ...