"The selected directory is not a valid home for Android SDK" IntelliJ 2017

IntelliJ Idea can't detect the Android-SDK because there is no "Platforms" folder

It can be created by running below commands

List installed and available packages : sdkmanager --list

Install packages : sdkmanager "platforms;android-26"

Then reference the "/usr/local/Caskroom/android-sdk/3859397" it will work

Reference link : https://developer.android.com/studio/command-line/sdkmanager.html