CODEWITHSUNDEEP
xcodeios-simulator
senfo
senfo

Reputation: 29026

Xcode Fails to Launch iPhone Simulator

I am attempting to launch the iPhone simulator from Xcode, but I keep getting the following error:

Error from Debugger: Failed to launch simulator: Operation failed with underlying error: 4294967253.

I've found a number of posts where Xcode failed to launch the simulator, but none of them match the specific error code I'm receiving.

Upvotes: 0

Views: 2316

Answers (3)

Rob Segal
Rob Segal

Reputation: 7625

Glad you got things solved senfo. I've found that doing a full rebuild can work as well as checking your system console log for erroneous error message/warnings. Xcode unfortunately seems to be rather poor at conveying errors when deployments fail to the simulator.

Upvotes: 1

senfo
senfo

Reputation: 29026

I'm not sure why I didn't try this earlier, but installing the latest version of Xcode fixed the problem.

Upvotes: 0

davbryn
davbryn

Reputation: 7176

Whenever I've had issues like this, Force Quitting the simulator from the dock (Alt-Right click), followed by Xcode seemed to do the trick. After doing that I could reload my project and it would run fine.

Failing that, I hear it might help to reboot your mac (though I've never needed to go that far).

Upvotes: 0

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