The iOS 8.1 simulator runtime is not available error in Xcode 6.1

38
votes

I was using Xcode 6.0.1 till now and things were fine. Then I upgraded to Xcode 6.1 and tried running my application(which has a deployment target of 7.0) in iPhone 6 simulator. But it shows an error message :

The iOS 8.1 simulator runtime is not available. Download the iOS 8.1 simulator runtime from the Downloads section in Xcode's Preferences

I manually deleted the earlier Xcode (6.0.1) and installed 6.1 from a dmg. I tried searching across but couldn't find related stuff. Any help would be appreciated.

Screenshot for warning

6
iosiphonexcode6
Under Xcode > Preferences > Downloads > Components, they list which simulators you have downloaded. – Krys Jurgowski
I had similar issue and found that if you run app on iPhone 5 and below simulator then it works fine. Use of iPhone 6/6+ generates the warning. – Jayprakash Dubey
Similar issue, gone after updating latest security update 2014-005 (or reboot due to this install) – ıɾuǝʞ

6 Answers

70
votes

It is a Mac problem, not an Xcode problem.

Logout the user, shutdown, restart or just reboot Mac. Your Xcode simulator will go back to normal.

26
votes

For anyone still facing this issue, this command worked for me: 

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService
8
votes

Rebooting did not help me.

Installing/Reinstalling Simulators worked!!

Look under (XCode Preferences-> Downloads -> Components)

4
votes

Maintain an accurate list of iOS simulators

When upgrading, you may drag around old simulators no longer available with your current version of Xcode. You can clean these by running this command in Terminal:

xcrun simctl delete unavailable

Quit Xcode first just for good measures. From the documentation:

Delete a device or all unavailable devices.

3
votes

Rebooting my computer fixed this exact issue for me. Same error was thrown for both iOS7 and iOS8 simulators. I'm on OS X 10.10 and Xcode 6.1.

0
votes

Just had this problem with Xcode 8 beta 5. I downloaded ios8 and 9 simulators, but was not able to run my app. I simply deleted derived data and rebooted my computer. It worked for me.