Xcode Cannot Run on the Selected Destination

Question

I was running my app this morning and now all of a sudden I am getting the following error when I try to run on the iPhone 5.1 simulator.

Cannot run on the selected

Answer 1

I had the same problem after two things happened:

• I upgraded to Facebook SDK 3.1
• I updated my OSX (with a minor version update)

The only fix worked from me was adding armv7s (mind the "s" in the end!!!) Like was suggested here: https://stackoverflow.com/a/12540654/531527