I’m using macOS Tahoe 26, and Xcode is version 26.2. I’ve tried all the methods suggested online, but I still can’t download it. In addition, iOS 26.* and iOS 18.* simulators also fail to download.
The error messages are shown below.
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
User Info: {
DVTErrorCreationDateKey = "2026-01-06 01:25:11 +0000";
}
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({
RequestedBuild = 23C54;
})
Domain: DVTDownloadsUtilitiesErrorDomain
Code: -1
Download failed due to a general networking error. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)
Domain: com.apple.MobileAssetError.Download
Code: 47
User Info: {
tryAgainLater = 1;
}
System Information
macOS Version 26.0 (Build 25A354)
Xcode 26.2 (24553) (Build 17C52)
Timestamp: 2026-01-06T09:25:11+08:00
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