How to update gradle in android studio?

Question

I installed Android Studio 0.1.9. Today I got and update to version 0.2 and of course I updated. After the installation I restarted Android Studio but now I get this messag

Answer 1

Most of the time you can have Android Studio automatically update the Gradle plugin.

If your Gradle plugin version is behind, Instant Run will mostly likely not work. Therefore if you go to the Instant Run settings (Preferences > Build, Execution, Deployment > Instant Run), you'll see an Update project button at the top right (image below). Clicking this will update both the Gradle wrapper and build tools.