Unable to Download iOS Simulator Runtime 26.1 on Xcode — Bad URL Error (Code 49)

Hi everyone,

I’m experiencing a persistent issue when trying to download the iOS Simulator Runtime 26.1 on Xcode (version 26.1). The download always fails with the following error

Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)
Domain: com.apple.MobileAssetError.Download
Code: 49

I’m located in Brazil, so I initially thought it might be region-related, but I’ve already tried several attempts to fix it, including:

  • Using VPNs for the US and Europe
  • Installing the Xcode 26.2 beta
  • Downgrading Xcode to earlier versions
  • Reinstalling the same version of Xcode
  • Restarting Xcode and my Mac
  • Switching networks
  • Clearing simulator support/device files

Unfortunately, nothing has resolved the issue.

Is anyone else facing this problem? Does anyone know a workaround or a manual way to download/install the iOS 26.1 simulator runtime?

Thanks in advance!

Thanks for reporting this. Most of the time, this is temporary and might be due to a network or firewall issue.

Could you try using the terminal, following this tutorial?

For example typing

xcodebuild -downloadPlatform iOS

I tried running the command as you recommended: xcodebuild -downloadPlatform iOS

But the error was:

{Error Domain=com.apple.MobileAssetError.Download Code=49 "Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)"

Following the steps from the page you sent, both resulted in the same error. From what I can tell, it's failing to locate the official runtime version URL.

Unable to Download iOS Simulator Runtime 26.1 on Xcode — Bad URL Error (Code 49)
 
 
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