Automatically accept all SDK licences

Question

Since gradle android plugins 2.2-alpha4:

Gradle will attempt to download missing SDK packages that a project depends on

Which

Answer 1

Ok FOR ANYONE HAVING THIS ISSUE AS OF 2018. The above answers did NOT work for me at all. What DID work was opening Android SDK - clicking the DOWNLOAD button on the tool bar and selecting the appropriate packages. After they finish downloading, it will let you accept the license agreement.