unable to boot iOS simulator Xcode 7

Question

I know this is repetitive question,but i tried all ways but it is not working. I have XCode 7 and XCode 7.2 on my machine and whenever I run the code it shows "Unable to boot iOS simulator".

I also tried to uninstall Xcode by using below command,

sudo /Developer/Library/uninstall-devtools --mode=all

But I am getting error "command not found". When I run "which sudo" it shows me below path -> "/usr/bin/sudo"

Am I missing anything?

Answer 1

I tried a lot but didn't succeed. Meanwhile I upgraded my Mac OS version to EI Captain and It worked. I know this is not answer to my question but this one solved my problem.