Problem with packpacking in android.

Hello, I just had a problem packpacking my project.
It is a blueprint project but create an empty class c ++ to insert the “adcollection plugin”.
All right up here.
The problem is when I want to compile, that I get this error.

I have installed support repository and library in last version
Help me please, I do not know how to solve it.

UATHelper: Empaquetado (Android (ETC1)): :app:processReleaseManifestZ:\app\src\main\AndroidManifest.xml:36:3-72 Error:
UATHelper: Empaquetado (Android (ETC1)):   uses-sdk:minSdkVersion 14 cannot be smaller than version 15 declared in library [com.ads.util:androidlib:1.0.0] Z:\app\build\intermediates\exploded-aar\com.ads.util\androidlib\1.0.0\AndroidManifest.xml
UATHelper: Empaquetado (Android (ETC1)):   Suggestion: use tools:overrideLibrary="fence.feixuwu.androidlib" to force usage
UATHelper: Empaquetado (Android (ETC1)): See http://g.co/androidstudio/manifest-merger for more information about the manifest merger.
UATHelper: Empaquetado (Android (ETC1)): :app:processReleaseManifest FAILED
UATHelper: Empaquetado (Android (ETC1)): FAILURE: Build failed with an exception.
UATHelper: Empaquetado (Android (ETC1)): * What went wrong:
UATHelper: Empaquetado (Android (ETC1)): Execution failed for task ':app:processReleaseManifest'.
UATHelper: Empaquetado (Android (ETC1)): > Manifest merger failed : uses-sdk:minSdkVersion 14 cannot be smaller than version 15 declared in library [com.ads.util:androidlib:1.0.0] Z:\app\build\intermediates\exploded-aar\com.ads.util\androidlib\1.0.0\AndroidManifest.xml
UATHelper: Empaquetado (Android (ETC1)):   Suggestion: use tools:overrideLibrary="fence.feixuwu.androidlib" to force usage
UATHelper: Empaquetado (Android (ETC1)): * Try:
UATHelper: Empaquetado (Android (ETC1)): Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
UATHelper: Empaquetado (Android (ETC1)): BUILD FAILED
UATHelper: Empaquetado (Android (ETC1)): Total time: 14.798 secs
UATHelper: Empaquetado (Android (ETC1)): ERROR: cmd.exe failed with args /c "C:\Users\D0NV1T0\Documents\Pruebas\Punchandgo\Intermediate/Android/APK\gradle\rungradle.bat" :app:assembleRelease
UATHelper: Empaquetado (Android (ETC1)):        (see C:\Users\D0NV1T0\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.18\UAT_Log.txt for full exception trace)
UATHelper: Empaquetado (Android (ETC1)): AutomationTool exiting with ExitCode=1 (Error_Unknown)
UATHelper: Empaquetado (Android (ETC1)): BUILD FAILED

Ok i solved this change in android SDK NDK API lvl from “android-19” to “latest”

I had The same Problem and your solution worked, but now I can’t install the apk on kitkat, I get a parsing error message