Just ignore the error message for now and install anyway by pressing the “ask later” button.But after you provided all that information, you will get an error message saying: “Can’t connect to the Internet, check Internet settings” (or something similar).
If you install the last stand-alone version of Adobe Lightroom version 6.14 on a newly installed Mojave macOS you will encounter a new problem ( see this post from 2020) – here is how to solve it:
