Here's a workaround to enable one of the Compiz switchers instead (much faster):
1. Run: sudo apt-get install compiz-plugins compizconfig-settings-manager
2. Run: ccsm
3. CCSM > Ubuntu Unity Plugin > Switcher >
For each key setting, click on the pencil icon and delete the key binding.
4. CCSM > Window Management >
Now tick Application Switcher or one of the other switchers. Configure it as you like.
Here's a workaround to enable one of the Compiz switchers instead (much faster):
1. Run: sudo apt-get install compiz-plugins compizconfig- settings- manager
2. Run: ccsm
3. CCSM > Ubuntu Unity Plugin > Switcher >
For each key setting, click on the pencil icon and delete the key binding.
4. CCSM > Window Management >
Now tick Application Switcher or one of the other switchers. Configure it as you like.