Dealing with Gradle Issues When Upgrading Android Studio
I just upgraded Android Studio to 2.1.1, and I had some Gradle issues. I had a "Gradle version 2.10 is required" and "Fix Gradle Wrapper and Re-import project Gradle Settings" message. This video shows the steps I tried and the solution.
I tested this with my students who had the same issue, and it turns out that it works.