error: failed to attach to process ID 0

Question

I have been reading the forums and so far none of the solutions suggested works for me. I\'m running Xcode 4.4.1 and testing in iPhone 5.1 simulator. The simulator won\'t op

Answer 1

Nothing from mentioned above helped me. But as I found that few moments before, I (or some other entity) had somehow removed records from my /etc/hosts file and I got the same error.

You should check whether you have in your /etc/hosts file the line "127.0.0.1 localhost". As this line is missing, the LLDB debugger is generating issues.

So just add 127.0.0.1 if you have it missing in your /etc/hosts.

This helped me!