I am currently using android studio 2.0 but wanted to update it to 2.1 as its been released on the stable channel. Now when I press on \"Update & Restart\" button ,it
As an alternate solution, you can download the Android Studio version that you want to upgrade to directly. For instance, 2.1 is located here:
2.1 @ Android Tools
Make sure that you import your old settings. Also, pull your SDK out of the old install folder and point the new installation at it, if necessary. This will ensure consistency across installs.