App Inventor My app crashes

[erma192]

Hi. My app crashes i put my apk file to my phone and install it but it crashes, i don't know why.

In my Android Studio there is one warning:
WARNING: The following project options are deprecated and have been removed:
android.useDeprecatedNdk
NdkCompile is no longer supported
Affected Modules: app

But i don't know how to fix it.
Or what causes that app to crash.

android {
compileSdkVersion 28
buildToolsVersion "28.0.3"

 

[23tony]

Is this attached and in developer mode? A stack trace would be really helpful.