Xcode 16.3 selected but use 16.0

[salvatoreboemia]

Description

Hi

I have an issue with GitHub Action

I'm using this runner

And I have in the GitHub Action variable

• ${{ vars.XCODEVERSION }} -> Xcode_16.3.app

i set xcode with fastlane in this way

run: |
        fastlane setup_xcode_version xcodeVersionGit:"$XCODE_VERSION"

my lane

  lane :setup_xcode_version do |options|
    xcodeVersion = options[:xcodeVersionGit]
    xcode_select("/Applications/#{xcodeVersion}")
  end

In the log I got

But during run

I really don't know why

I also added this print

echo "=============================="
        echo "XCODE USED IN RUNNER PRE FASTLANE:"
        echo "DEVELOPER_DIR=$DEVELOPER_DIR"
        xcode-select -p
        xcrun --find xcodebuild
        xcodebuild -version
        echo "=============================="

result

Do you know why?

Thanks

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 22.04
• Ubuntu 24.04
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

Image: macos-15-arm64
Version: 20250506.1412

Is it regression?

yes

Expected behavior

works as expected with xcode 16.3

Actual behavior

xcode 16.0

Repro steps

run action runner

[ijunaidm1]

Hi @salvatoreboemia - We will look into the issue and keep you posted with the updates.

[ijunaidm1]

Hi @salvatoreboemia - Can you please provide more information related to this issue , basically can you send us the complete workflow, build logs - for both successful and unsuccessful builds attempts to investigate further more on this issue.
And without this information we won't be able to resolve the issue.

[susmitamane]

Hi @salvatoreboemia,

• As suggested, I tried to reproduce the issue locally using Fastlane and the specified Xcode values. I was able to replicate the problem — it’s picking up the default Xcode path set in the image. To resolve this, we need to explicitly specify the Xcode version when building or triggering Fastlane builds.

• For example, use:

sh("sudo xcode-select -s /Applications/#{xcodeVersion}")If this is not set in your fastfile, it defaults to the path already configured:
xcode_select("/Applications/#{xcodeVersion}")

• Could you please try the same on your end and let me know if this fix your issue as well? If not fixed then please provide detailed information build logs,failed build,workflow details.

• I’ve attached screenshots for the fix.

Thanks!

[salvatoreboemia]

@susmitamane Hi, sorry for late reply

Yes I solved in this way, we need to set manually xcode version with sudo xcode-select -s but not in fastlane but directly in the github action.

In this way the correct xcode version is selected

Thanks a lot