I've just downloaded Android Studio 3 for Windows from the official website, but when it starts, it displays an error message about a missing Android SDK:
When I click that link, it just redirects to the same official website. There isn't a separate link there for SDK download.
Where could I get it from? Shouldn't the Android SDK be installed during Android Studio 3 setup?
Apparently, the problem was that Android Studio 3.0 had already been installed and uninstalled before this. The SDK got removed, but Android Studio's config didn't.
Removing the config from a previous install (C:\Users\<user>\.AndroidStudio3.0
folder) did the trick. When Android Studio started up, it opened a dialog about which parts of the SDK to download, and then proceeded as expected.