Ok, so the ‘Isolate Simulator Device’ checkbox will delete all the ‘other’ simulators on this machine. Looks like you only have the ‘iPad 2’, which is on 8.1. So:
- check ‘Force Device’, and input ‘iPad 2’ (without the quotes)
- change ‘Platform Version’ to ‘8.1’
You don’t really need to check ‘Isolate Simulator Device’.