Dear Venkat,
Please follow this below document step by step carefully,
https://docs.mendix.com/howto/mobile/deploying-native-app
Thanks & Regards,
Manikandan K
Hello
On Android Studio, in order to generate the APK Debug for testing purposes, prefer to use the Build button (the hammer) instead of the Play button.
Rationale: you are in the control on which phase the problem is, therefore is easier to investigate the problem.
I personally prefer do separately:
The APK is generated by the Build button is at:
[your_template]\android\app\build\outputs\apk\appstore\debug
You can install the APK by drag&dropping in your emulator or mirrored device (I use SCRCPY+)
See the error messages in LogCat, if any.