Hi I have spent 4 days on build problems with unity, Gradle, tools... if i built a product and expected my clients to figure this out i would be out of business. I have given up, unity is not the way forward. I am not a coder. I built an Ar concept years ago with no problems, but now its rife with issues, so i have abandoned my efforts to complete this project, thanks guys great job...bye unity!!
You're welcome to share the exact issues you are facing here and we can either try and assist you in resolving it or point you in the right direction to get it resolved.