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Home/ Questions/Q 7743159
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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T09:27:36+00:00 2026-06-01T09:27:36+00:00

I am trying to test my app on a device but am unable to

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  • I am trying to test my app on a device but am unable to do it as says that

“The version of iOS on “iPhone” does not match any of the versions of iOS supported for development with this installation of the iOS SDK. Please restore the device to a version of the OS listed below, or update to the latest version of the iOS SDK; which is available here.

OS Installed on iPhone
5.1 (9B179)

Xcode Supported iOS Versions
Latest
5.0 (9A334)
4.3
4.2″

  • Now I know that i have the latest iOS deployed in the iPhone. But my installed Xcode’s version is “4.2.1” whereas in App Store the latest version is “4.3.2”. Also, in App Store it shows up as “Installed” which means that I need to run the “Install Xcode” app from my applications.

    • Now, when I run “Install Xcode”, it fails saying that there was an error encountered. In install.log file, the message logged is as below

“Failed install preflight: Error Domain=PKInstallErrorDomain Code=102
“The package “DeveloperTools.pkg” is untrusted.”
UserInfo=0x7fc3c9e602a0 {NSLocalizedDescription=The package
“DeveloperTools.pkg” is untrusted.,
NSURL=../Packages/DeveloperTools.pkg —
file://localhost/Applications/Install%20Xcode.app/Contents/Resources/Xcode.mpkg/,
PKInstallPackageIdentifier=com.apple.pkg.DeveloperToolsLeo,
NSUnderlyingError=0x7fc3cbdc42d0 “The operation couldn’t be completed.
CSSMERR_TP_CERT_EXPIRED”}”

Now, how to fix it. I have ensured that there is no other software update pending in the system which may have potentially caused any issues in Xcode installation.

PS – I am using Lion, current Xcode version is Version 4.2.1 and the issue occurs on all iOS devices.

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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-06-01T09:27:38+00:00Added an answer on June 1, 2026 at 9:27 am

    There was a problem with updating from 4.2 in the app store as noted here: https://developer.apple.com/xcode/ – which is why the app store is not letting you update eventhough you do not have the latest version.

    It sounds from your question as if you are trying to reinstall using the installer you already have. If you have not done so already you should log into the apple dev center and download the installer from there (from full tools download list – main screen just links to app store). once on 4.3 updating from app store for future updates should work fine.

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