Manifest Merger Issue

Hello Guys,

I have to integrate AAR file into my ionic 4 app. For this requirement I followed below steps.
1.Created custom ionic plugin using plugman
2.Integrated plugin into ionic 4 app, it works fine.
3.Added third party AAR file into custom plugin and installed plugin into ionic 4 app, but I am trying to merge into Ionic app it throws error like …app\src\main\AndroidManifest.xml:5:5-12:19 Error:
tools:replace specified at line:5 for attribute android:theme, but no new value specified

Please help me out.

Your suggestions or solutions will be most helpful for me.