Xcode downloads but will not install iOS 17 and watchOS 10 SDKs

I want to use the iOS simulator on my Mac for a bit of web dev.


Xcode is installed, via the App Store. And, Xcode has downloaded the packages for iOS 17 and watchOS 10. But it doesn't install them.


It just keeps telling me they aren't installed and offering a "Get" button, which when clicked pops up the download window showing me that it's already downloaded.


In Settings -> Platform I see lines for iOS 17.0 with the Get button (which just brings up the download window). And under that is a line for iOS 17.0 Simulator, which shows that it's downloaded.


Trying to start an Xcode project for iOS just tells me that iOS isn't installed and gives me the "Get" button which... blah blah blah. Back to the download box.


Double-clicking or right-clicking on anything/everything has not yielded any install dialog. I'm sure I must be missing something simple, but, what?


Sorry if this is covered elsewhere; I searched within the forum and couldn't find an answer.

Posted on Oct 3, 2023 9:37 AM

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Posted on Dec 6, 2023 2:11 AM

I get the same thing. I d/l and ran the iOS 17.0 CLI install as per the instructions given in this thread. It ran just fine. Opening Xcode, the canvas area still shows "iOS not installed." with a GET button.


My Xcode Platforms list shows:


macOS 14.0 - Built in

iOS 17.0(grayed out) - Get button

iOS 17.0.1 Simulator - 7.21 on disk

iOS 17.0 Simulator - 7.56 on disk

watch and tv are greyed out.


But i can't get the canvas to show up no matter what I do. I keep going in the same loop, get, install, launch, says it's not installed. Arg!!!!

7 replies
Question marked as Best reply

Dec 6, 2023 2:11 AM in response to mattriffle

I get the same thing. I d/l and ran the iOS 17.0 CLI install as per the instructions given in this thread. It ran just fine. Opening Xcode, the canvas area still shows "iOS not installed." with a GET button.


My Xcode Platforms list shows:


macOS 14.0 - Built in

iOS 17.0(grayed out) - Get button

iOS 17.0.1 Simulator - 7.21 on disk

iOS 17.0 Simulator - 7.56 on disk

watch and tv are greyed out.


But i can't get the canvas to show up no matter what I do. I keep going in the same loop, get, install, launch, says it's not installed. Arg!!!!

Dec 19, 2023 3:41 AM in response to MrHoffman

I downloaded the latest iOS Sim. Tried to install from command line. It spit out the following error:


 sudo xcrun simctl runtime add "iOS_17.2_Simulator_Runtime.dmg"


D: 25269EA8-085B-446D-ABE4-38077DE1BDF3 iOS (17.2 - 21C62) (Unusable - Other Failure: Error Domain=SimDiskImageErrorDomain Code=5 "Duplicate of 8D3A7D3A-DC4B-4C6C-8F52-8F4B6FCFBE0C" UserInfo={NSLocalizedDescription=Duplicate of 8D3A7D3A-DC4B-4C6C-8F52-8F4B6FCFBE0C, unusableErrorDetail=})

Xcode downloads but will not install iOS 17 and watchOS 10 SDKs

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