Unity keeps prompting to select the Android SDK Folder when I have already selected it. How do I fix this?

Unity should remember these settings after the first time
This path also can be specified in Unity-Preferences…-External Tools-AndroidSdk path
Or just try to save the project afterf path selection.

@intrikit Hope I am not too late, I just suffered this issue there, according to can not select android root folder - Unity Answers - Android SDK uses two paths, I originally had C:\Program Files (x86)\Android\android-sdk which was causing the issue, so I changed the “Android SDK” path via [Unity] “Edit > Preferences > External Tools” to C:/Users/User/AppData/Local/Android/Sdk , which has allowed me to build my game successfully.