Xcode 13.2 - Internal error : Missing Package Description Module

Hi guys, just updated Xcode to 13.2 via Mac App Store.

I installed the additional components, and my project won't compile anymore : Xcode just tells me "Internal error: missingPackageDescriptionModule - Resolving Package Graph Failed" when attempting to build. None of the Swift packages used within my app seems to build, because "Package resolution errors must be fixed before building".

Already attempted to clean derived data, reset Swift package caches and update package versions to no avail.

Guess I'll try re-installing Xcode but... does anyone else have the same issue ?

Using an M1 Mac and just updated to Monterey 12.1 if that's relevant.

Thank you !

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Posted by
Rezard
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  • Same issue here. Same Xcode and OS versions, on M1. I tried removing and re-adding the package, but that didn't fix it.

    —
    jhokit

  • :( Same issue. Even tried creating a brand new Swift Package (blank w/one test) and still seeing the issue, so it doesn't seem project specific...

    —
    peterwong7

  • Same issue here.

    —
    bbousquet

Apple Recommended

Xcode 13.2.1, released today, addresses this issue:

Resolved an issue where the Mac App Store version of Xcode failed during package resolution with the error Internal error: missingPackageDescriptionModulewhen using Swift packages either standalone or as dependencies in an Xcode project or workspace. (86435800) (FB9807887)

This update is available through the Mac App Store, as well as a direct download on the Apple Developer website.

Posted by
edford
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  • If they have fixed it, why isn't it available as an update via the usual Software Update in System Preferences?

    —
    Teslum

  • I needed to click UPDATE on the Xcode 13 page in the App Store. Maybe this was because the server was very busy at that time. Anyway, 13.2.1 is working now.

    —
    EA7K

  • Now the app store update is stuck in going from 13.2 to 13.2.1, looks like I have to delete the previous store version.

    —
    MobileTen

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It's terrible, waste time to download Xcode again. Fortunately, I didn't remove the pod file from my project. Remove all SPM packages, and reuse cocoapods , clean build folder, restart Xcode. The issue was gone

Posted by
Matthewdd
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Same issue with me!

Posted by
TechState
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I have a similar issue building an installer plugin which has as Swift package included (don't ask me why). I got different but similar build error messages initially. I installed the additional tools required by Xcode and also updated the command line tools xcode-select --install. After all the updates my latest error is:

Cleaning Installer Plugin...
xcodebuild: error: Could not resolve package dependencies:
  Internal error: missingPackageDescriptionModule
Build failed at "all" action with error:
Fail: ./installer-plugin/build.sh returned code 74
Aborted.

That's my build command:

local symroot="$(xcodebuild -showBuildSettings -project "${XCB_PROJECT}" -scheme "${XCB_SCHEME}" | grep SYMROOT | sed -n 2p | sed -e 's#.*=\(\)#\1#' | sed 's/^ *//g')"
Posted by
ZingamAtNable
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same here!!!!

Posted by
jingfromhangzhou
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Remove the Xcode updated by App Store, and download it from https://developer.apple.com/services-account/download?path=/Developer_Tools/Xcode_13.2/Xcode_13.2.xip Error disappears after that.

Posted by
vjardel
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  • Apparently, that's not a 100% fix.

    In my case the release version from the downloads section crashes on launch.

    Only the 13.2 RC version specifically is working for me.

    Something has definitely gone very wrong with this release.

    —
    handmadeapps
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Apple can't remove the App Store version, so perhaps the backend is broken and they don't have a backup. But it would nice if they would come clean and tell us what the **** is going on. Their refusal to own up and communicate is quite normal, so good luck to those waiting for approval.

Posted by
EA7K
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Isn't this the one where you have to remove the IDESourceControlKnownSSHHostsDefaultsKey key from ~/Library/Preferences/com.apple.dt.Xcode.plist ? IIRC I had to do this after upgrading to 13.x.

https://forums.swift.org/t/according-to-xcode-the-identity-of-a-repository-hosted-on-github-com-has-changed/53560/6

Posted by
stevenkramer
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Apple, thanks for looking into this, very appreciated.

However, how are you guys testing lately?

Posted by
Daniel-Nurvv
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Same issue for me as well. Xcode and M1 sucks me too much!!

Posted by
puneetmahali1
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Same issue here. also if I try to reinstall the packages it will freeze on " Preparing to validate ".

Posted by
usefz89
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  • The original issue is likely very related to this.

    —
    diego.trevisan
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Same issue here

Posted by
kayodeadeniyi
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I downgraded my Xcode to 13.2RC and that worked.

Posted by
MyMountain
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Same issue here, Xcode 13.2, Monterey 12.1

Posted by
zydeico
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Same issue here using Apple Swift Packages for management. Not a big fan of this solution, but it worked for me in at least one app. I removed all packages from my project and attempted to re-add and like others here got the hang up on "preparing to validate." Since that didn't want to work I just reinstalled via cocoapods. Everything is back up and running without any issues. Granted I did not edit any of my pod code files so reinstalling wasn't a major problem.

Best of luck all.

Posted by
Mikejr
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Apple's mistake is clear, but I wonder why people don't read the accepted answer. 🤨 Once you download Xcode 13.2 from the developer site, the problem is solved.

Posted by
browne2
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  • People do read it the answer, but downloading and unpacking 10 GB takes the better part of a day. The problem of thousands of waisted developer days is not solved.

    —
    jonathan-opuscope
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