Please follow these steps: 1. Help | Install new software 2. Select the ADT update site (there are two, one with http:// and one with https:// If one doesn't work, try the other. 3. Select the developer tools section and press next. 4. You should see a dialog that says "this software is already installed, an update will be performed instead". Clicking ok will lead to 22.6.1 being installed.