I made an AR app using UNITY 5.6.6 and I'm trying to publish my app to Google Play that need at least API Level 26. I have tried different ways to achieve that targeted level of API but achieved nothing and the Google Console only recognize my app'S API as level 22. Yes, it can be done easily if I use Unity earlier version (I am using Unity 2018 for my other published Apps), but I have to use this particular version because I'm using a little old plugin that only can be stable using those early versions of UNITY.
Here above some ways I've tried on Unity 5.6.6 :
I have tried using SDK tools version 26.1
I have tried using SDK tools version r25.2.5 sdkmanager
Here is my configuration I've tried on Build Settings-Other Settings config 1 config 2
Here is the message I received from Google Console google console message
I hope someone have experienced this and solved the problem. I appreciate your time and help alot! Thank you!