Ok you need to set SDK API version in Unity platform

Or Run Studio and update all required tools and platform

Or check out the path of SDK download PATH : C:/USERS/USERNAME/APPDATA/SDK default PATH In studio in SDK MANAGER

Ok you need to set SDK API version in Unity platform

Or Run Studio and update all required tools and platform

Or check out the path of SDK download PATH : C:/USERS/USERNAME/APPDATA/SDK default PATH

Open SDK MANAGER Check Install PATH dir....