Xcode 5.1 and Simulator In Use Error

Question

I've noticed that since upgrading to Xcode 5.1, the "Simulator In Use" error pops up randomly when trying to build/run. Sometimes nothing happens, and other times I get the error.

Even if there are no apps running, or the simulator is not running at all, I still encounter the error, which persists until I restart Xcode.

How can I fix this?

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My solution is here. More like a brandade though. http://stackoverflow.com/questions/22266953/the-simulator-cant-be-launched-because-it-is-already-in-use — uplearned.com, Aug 21 '14 at 20:49

score 4 · Answer 1 · answered Jul 10 '14 at 06:03

4

Fix this issue using below approach :

Quit the simulator and Xcode as well.

OR

Reset the content of Simulator. Goto to "iOS Simulator" menu -> "Reset contents and Settings.."

answered Jul 10 '14 at 06:03

Jayprakash Dubey

35,723
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first solution worked for me, second is doing nothing without restarting both (xcode, iosimulator) too – THESorcerer Aug 25 '14 at 19:46

score 2 · Answer 2 · answered Mar 17 '14 at 19:03

2

When Ever you get an error like "Simulator In Use" Just follow the following steps.

1 ) Just remove derived data for the particular application. ( or all the derived data for not needed).
2 ) Delete Derived data also from trash folder if any.
3 ) Clean Your Project.
4 ) Build and run the Project.

answered Mar 17 '14 at 19:03

tejas

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Thank you for the info about Derived Data. Never knew it was OK to clear that out!! However it is not the solution to this issue; my problem still persists. I now believe this might be a glitch peculiar to Xcode 5.1. – Jupiter869 Mar 18 '14 at 13:35
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yeap, same with me. simulator in use and wont start, restart XCode fixes it. so it is a bug, I believe – Boris Gafurov May 01 '14 at 19:10

score 2 · Answer 3 · answered Aug 05 '14 at 16:20

2

Quitting the xCode and restarting solves the problem but it has become, at least with me, perpetual. I have to quit and restart again so many times already. There's got to be a fix for this.

answered Aug 05 '14 at 16:20

Emastmagy MastMagy

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This is the correct answer for me. There's no need to reset and even restart the simulator, restarting Xcode fix this. – bauerMusic Feb 07 '15 at 10:13

score 0 · Answer 4 · answered May 15 '14 at 15:07

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The upgrading Mac OS version from 10.8.5 to 10.9.2 fixed this issue for me.

answered May 15 '14 at 15:07

SoVa_

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Ok, I'll upgrade today and c :) – Atef Jul 17 '14 at 03:52

Xcode 5.1 and Simulator In Use Error

4 Answers4