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iOS Build a Weather App with Swift (Retired) Pulling Data From the Web Making a Network Call

Chris Rosenberg
Chris Rosenberg
1,864 Points

Unable to run app in simulator?

I keep getting this error when trying to run my App in the simulator.

An error was encountered while running (Domain = FBSOpenApplicationErrorDomain, Code = 4)

If you reset your simulator this should fix your error.

So from your iOS simulator window choose...

iOS Simulator > Reset Content and Settings... > Reset

1 Answer

Kevin Hamil
Kevin Hamil
8,203 Points

I get this on occasion as well. If you close the simulator program and reopen it, then it should run fine.